./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01-1.c --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_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 779bf9ee71941115d797b5e86cdaa11633497030 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:30:26,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:30:26,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:30:27,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:30:27,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:30:27,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:30:27,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:30:27,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:30:27,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:30:27,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:30:27,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:30:27,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:30:27,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:30:27,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:30:27,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:30:27,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:30:27,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:30:27,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:30:27,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:30:27,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:30:27,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:30:27,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:30:27,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:30:27,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:30:27,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:30:27,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:30:27,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:30:27,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:30:27,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:30:27,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:30:27,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:30:27,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:30:27,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:30:27,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:30:27,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:30:27,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:30:27,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:30:27,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:30:27,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:30:27,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:30:27,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:30:27,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:30:27,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:30:27,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:30:27,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:30:27,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:30:27,160 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:30:27,160 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:30:27,160 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:30:27,160 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:30:27,161 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:30:27,161 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:30:27,162 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:30:27,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:30:27,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:30:27,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:30:27,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:30:27,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:30:27,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:30:27,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:30:27,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:30:27,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:30:27,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:30:27,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:30:27,165 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:30:27,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:30:27,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:30:27,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:30:27,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:30:27,166 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:30:27,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:30:27,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:30:27,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:30:27,167 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:30:27,168 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:30:27,169 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_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 779bf9ee71941115d797b5e86cdaa11633497030 [2020-11-30 01:30:27,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:30:27,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:30:27,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:30:27,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:30:27,517 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:30:27,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/../../sv-benchmarks/c/loops/trex01-1.c [2020-11-30 01:30:27,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/data/27b7b36a7/02e2a6350f244566a21bc2a9567edb0e/FLAGaa282d37f [2020-11-30 01:30:28,041 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:30:28,041 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/sv-benchmarks/c/loops/trex01-1.c [2020-11-30 01:30:28,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/data/27b7b36a7/02e2a6350f244566a21bc2a9567edb0e/FLAGaa282d37f [2020-11-30 01:30:28,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/data/27b7b36a7/02e2a6350f244566a21bc2a9567edb0e [2020-11-30 01:30:28,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:30:28,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:30:28,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:28,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:30:28,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:30:28,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477bf41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28, skipping insertion in model container [2020-11-30 01:30:28,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:30:28,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:30:28,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:28,659 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:30:28,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:28,722 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:30:28,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28 WrapperNode [2020-11-30 01:30:28,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:28,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:28,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:30:28,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:30:28,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:28,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:30:28,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:30:28,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:30:28,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... [2020-11-30 01:30:28,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:30:28,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:30:28,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:30:28,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:30:28,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:30:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:30:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:30:28,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:30:29,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:30:29,216 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 01:30:29,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:29 BoogieIcfgContainer [2020-11-30 01:30:29,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:30:29,229 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:30:29,229 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:30:29,234 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:30:29,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:29,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:30:28" (1/3) ... [2020-11-30 01:30:29,237 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551721c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:29, skipping insertion in model container [2020-11-30 01:30:29,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:29,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:28" (2/3) ... [2020-11-30 01:30:29,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@551721c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:29, skipping insertion in model container [2020-11-30 01:30:29,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:29,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:29" (3/3) ... [2020-11-30 01:30:29,255 INFO L373 chiAutomizerObserver]: Analyzing ICFG trex01-1.c [2020-11-30 01:30:29,339 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:30:29,339 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:30:29,339 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:30:29,339 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:30:29,340 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:30:29,340 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:30:29,340 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:30:29,340 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:30:29,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-30 01:30:29,378 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 01:30:29,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:29,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:29,385 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:30:29,385 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:30:29,385 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:30:29,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-11-30 01:30:29,388 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 01:30:29,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:29,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:29,389 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:30:29,389 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:30:29,397 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 18#L37true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 4#L16true assume !!(f_~k~0 <= 1073741823); 21#L19-1true [2020-11-30 01:30:29,397 INFO L796 eck$LassoCheckResult]: Loop: 21#L19-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 21#L19-1true [2020-11-30 01:30:29,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:29,404 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2020-11-30 01:30:29,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:29,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386038656] [2020-11-30 01:30:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:29,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:29,563 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-11-30 01:30:29,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:29,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45958950] [2020-11-30 01:30:29,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:29,580 INFO L82 PathProgramCache]: Analyzing trace with hash 28693867, now seen corresponding path program 1 times [2020-11-30 01:30:29,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:29,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218742471] [2020-11-30 01:30:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:29,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:29,645 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:30,037 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-11-30 01:30:30,188 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-30 01:30:30,198 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:30,201 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:30,201 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:30,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:30,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:30,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:30,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:30,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:30,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration1_Lasso [2020-11-30 01:30:30,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:30,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:30,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:30,978 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:30,983 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:30,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:31,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:31,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:31,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:31,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:31,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:31,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:31,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:31,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:31,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:31,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:31,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:31,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:31,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:31,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:31,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:31,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:31,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:31,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:31,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:31,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:31,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:31,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:31,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:31,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:31,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:31,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:31,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:31,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:31,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:31,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:31,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:31,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:31,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:31,164 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:31,199 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 01:30:31,199 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:31,209 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:31,214 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:31,215 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:31,215 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-11-30 01:30:31,296 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:31,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:30:31,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:31,529 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:31,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:31,546 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-11-30 01:30:31,547 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-11-30 01:30:31,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 72 states and 100 transitions. Complement of second has 7 states. [2020-11-30 01:30:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:31,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 01:30:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2020-11-30 01:30:31,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-30 01:30:31,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:31,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-30 01:30:31,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:31,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 01:30:31,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:31,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 100 transitions. [2020-11-30 01:30:31,717 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2020-11-30 01:30:31,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 24 states and 32 transitions. [2020-11-30 01:30:31,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-30 01:30:31,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-30 01:30:31,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2020-11-30 01:30:31,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:31,725 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2020-11-30 01:30:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2020-11-30 01:30:31,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2020-11-30 01:30:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:30:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-11-30 01:30:31,758 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-30 01:30:31,758 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-30 01:30:31,758 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:30:31,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-11-30 01:30:31,760 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-11-30 01:30:31,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:31,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:31,760 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 01:30:31,761 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:30:31,761 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 187#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 178#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 175#L16-1 assume !!(f_~k~0 <= 1073741823); 176#L19-4 [2020-11-30 01:30:31,761 INFO L796 eck$LassoCheckResult]: Loop: 176#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 176#L19-4 [2020-11-30 01:30:31,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:31,762 INFO L82 PathProgramCache]: Analyzing trace with hash 927240, now seen corresponding path program 1 times [2020-11-30 01:30:31,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:31,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43798815] [2020-11-30 01:30:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,790 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:31,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:31,795 INFO L82 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2020-11-30 01:30:31,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:31,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134487462] [2020-11-30 01:30:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:31,805 INFO L82 PathProgramCache]: Analyzing trace with hash 28744510, now seen corresponding path program 1 times [2020-11-30 01:30:31,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:31,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972839876] [2020-11-30 01:30:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:31,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:31,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:32,162 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-30 01:30:32,274 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-11-30 01:30:32,276 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:32,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:32,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:32,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:32,276 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:32,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:32,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:32,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:32,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration2_Lasso [2020-11-30 01:30:32,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:32,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:32,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:32,897 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:32,897 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:32,919 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 [2020-11-30 01:30:32,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:32,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:32,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:32,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:32,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:32,931 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:32,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:32,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:32,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:32,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:32,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:32,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:32,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:32,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:32,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:32,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,041 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 [2020-11-30 01:30:33,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:33,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,206 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 [2020-11-30 01:30:33,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:33,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:33,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:33,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:33,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:33,496 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:33,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:33,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:33,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:33,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:33,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:33,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:33,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:33,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:33,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:33,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:33,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:33,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:33,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:33,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:33,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:33,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:33,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:33,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:33,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:33,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:33,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:34,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:34,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:34,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:34,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:34,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:34,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:34,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:34,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:34,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:34,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:34,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:34,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:34,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:34,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:34,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:34,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:34,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:34,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:34,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:34,204 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 [2020-11-30 01:30:34,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:34,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:34,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:34,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:34,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:34,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:34,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:34,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:34,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:34,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:34,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:34,262 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 01:30:34,263 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:34,268 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:34,271 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:34,272 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:34,272 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-11-30 01:30:34,346 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:34,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:30:34,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:34,422 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:34,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:34,424 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-11-30 01:30:34,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-30 01:30:34,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 30 states and 41 transitions. Complement of second has 6 states. [2020-11-30 01:30:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 01:30:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-30 01:30:34,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-30 01:30:34,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:34,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-30 01:30:34,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:34,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 01:30:34,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:34,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2020-11-30 01:30:34,491 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-11-30 01:30:34,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 34 transitions. [2020-11-30 01:30:34,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-30 01:30:34,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-30 01:30:34,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-11-30 01:30:34,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:34,493 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-11-30 01:30:34,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-11-30 01:30:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2020-11-30 01:30:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:30:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-11-30 01:30:34,496 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-30 01:30:34,496 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-30 01:30:34,496 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:30:34,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-11-30 01:30:34,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:34,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:34,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:34,498 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:34,498 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:34,498 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 310#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 301#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 302#L16 assume !!(f_~k~0 <= 1073741823); 303#L19-1 assume !(f_~z~0 < f_~k~0); 306#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 304#L6 assume !(0 == __VERIFIER_assert_~cond); 305#L24-2 [2020-11-30 01:30:34,498 INFO L796 eck$LassoCheckResult]: Loop: 305#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 313#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 305#L24-2 [2020-11-30 01:30:34,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1805001234, now seen corresponding path program 1 times [2020-11-30 01:30:34,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:34,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320800699] [2020-11-30 01:30:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:34,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320800699] [2020-11-30 01:30:34,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:34,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:34,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738668765] [2020-11-30 01:30:34,601 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 01:30:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 1 times [2020-11-30 01:30:34,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:34,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276478085] [2020-11-30 01:30:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,625 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:34,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:34,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:30:34,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:30:34,669 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 01:30:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:34,802 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-11-30 01:30:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:30:34,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2020-11-30 01:30:34,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:34,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2020-11-30 01:30:34,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-30 01:30:34,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-30 01:30:34,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-11-30 01:30:34,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:34,805 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 01:30:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-11-30 01:30:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 01:30:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:30:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-11-30 01:30:34,808 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 01:30:34,808 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 01:30:34,808 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 01:30:34,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-11-30 01:30:34,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:34,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:34,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:34,809 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:34,809 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:34,809 INFO L794 eck$LassoCheckResult]: Stem: 363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 361#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 352#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 353#L16 assume !!(f_~k~0 <= 1073741823); 354#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 358#L19-1 assume !(f_~z~0 < f_~k~0); 357#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 355#L6 assume !(0 == __VERIFIER_assert_~cond); 356#L24-2 [2020-11-30 01:30:34,809 INFO L796 eck$LassoCheckResult]: Loop: 356#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 364#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 356#L24-2 [2020-11-30 01:30:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 120516975, now seen corresponding path program 1 times [2020-11-30 01:30:34,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:34,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215420553] [2020-11-30 01:30:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 2 times [2020-11-30 01:30:34,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:34,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886562746] [2020-11-30 01:30:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,890 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:34,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:34,892 INFO L82 PathProgramCache]: Analyzing trace with hash -147302634, now seen corresponding path program 1 times [2020-11-30 01:30:34,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:34,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175338869] [2020-11-30 01:30:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:34,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:34,952 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:35,310 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-11-30 01:30:35,578 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-30 01:30:35,583 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:35,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:35,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:35,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:35,584 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:35,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:35,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:35,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:35,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration4_Lasso [2020-11-30 01:30:35,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:35,584 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:35,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:35,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:36,175 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:36,175 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:36,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:36,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:36,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:36,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:36,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:36,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:36,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:36,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:36,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:36,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:36,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:36,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:36,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:36,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:36,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:36,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:36,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:36,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:36,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:36,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:36,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,429 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:36,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:36,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:36,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:36,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:36,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:36,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:36,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:36,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:36,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:36,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:36,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:36,495 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:36,501 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 01:30:36,501 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:36,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:36,505 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:36,505 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:36,505 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-11-30 01:30:36,549 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:36,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:36,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:36,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:36,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:36,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:36,642 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:36,642 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-11-30 01:30:36,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 25 states and 32 transitions. Complement of second has 6 states. [2020-11-30 01:30:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-30 01:30:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 01:30:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 01:30:36,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:36,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-30 01:30:36,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:36,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-11-30 01:30:36,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:36,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 31 transitions. [2020-11-30 01:30:36,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-30 01:30:36,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-30 01:30:36,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-11-30 01:30:36,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:36,704 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-11-30 01:30:36,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-11-30 01:30:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-11-30 01:30:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 01:30:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2020-11-30 01:30:36,706 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-11-30 01:30:36,706 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-11-30 01:30:36,706 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 01:30:36,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2020-11-30 01:30:36,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:36,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:36,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:36,707 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:36,707 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:36,707 INFO L794 eck$LassoCheckResult]: Stem: 497#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 495#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 486#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 482#L16-1 assume !!(f_~k~0 <= 1073741823); 483#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 484#L19-4 assume !(f_~z~0 < f_~k~0); 485#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 504#L6-3 assume !(0 == __VERIFIER_assert_~cond); 493#L24-5 [2020-11-30 01:30:36,707 INFO L796 eck$LassoCheckResult]: Loop: 493#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 494#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 493#L24-5 [2020-11-30 01:30:36,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:36,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1629273231, now seen corresponding path program 1 times [2020-11-30 01:30:36,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:36,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129930953] [2020-11-30 01:30:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,738 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:36,739 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 1 times [2020-11-30 01:30:36,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:36,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633633360] [2020-11-30 01:30:36,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,746 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:36,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485034, now seen corresponding path program 1 times [2020-11-30 01:30:36,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:36,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944976026] [2020-11-30 01:30:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:36,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:36,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:37,056 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-11-30 01:30:37,215 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-11-30 01:30:37,218 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:37,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:37,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:37,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:37,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:37,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:37,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:37,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:37,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration5_Lasso [2020-11-30 01:30:37,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:37,219 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:37,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:37,794 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:37,794 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:37,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:37,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:37,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:37,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:37,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:37,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:37,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:37,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:37,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:37,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:37,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:37,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:37,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:37,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:37,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:37,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:37,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:37,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:37,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:37,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:37,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:37,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:37,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:37,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:37,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:37,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:37,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:37,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:37,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:37,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:37,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:37,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:37,965 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 [2020-11-30 01:30:37,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:37,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:37,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:37,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:37,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:37,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:37,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:38,015 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 [2020-11-30 01:30:38,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:38,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:38,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:38,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,178 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,310 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,338 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 [2020-11-30 01:30:38,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:38,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:38,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:38,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:38,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:38,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:38,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:38,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:38,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:38,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:38,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:38,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:38,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:38,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:38,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:38,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:38,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:38,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:38,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:38,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:38,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:38,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:38,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:38,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:38,548 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:38,555 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 01:30:38,555 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:38,557 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:38,559 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:38,559 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:38,559 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-11-30 01:30:38,601 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:38,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:38,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:38,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:38,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:38,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:38,671 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:38,671 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-11-30 01:30:38,709 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 29 states and 38 transitions. Complement of second has 6 states. [2020-11-30 01:30:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-30 01:30:38,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 01:30:38,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:38,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 01:30:38,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:38,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-30 01:30:38,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:38,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-11-30 01:30:38,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:38,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 37 transitions. [2020-11-30 01:30:38,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-30 01:30:38,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 01:30:38,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2020-11-30 01:30:38,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:38,714 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2020-11-30 01:30:38,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2020-11-30 01:30:38,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-11-30 01:30:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 01:30:38,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-30 01:30:38,717 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-30 01:30:38,717 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-30 01:30:38,717 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 01:30:38,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2020-11-30 01:30:38,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 01:30:38,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:38,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:38,718 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:38,718 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 01:30:38,719 INFO L794 eck$LassoCheckResult]: Stem: 642#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 640#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 628#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 629#L16 assume !!(f_~k~0 <= 1073741823); 630#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 634#L19-1 assume !(f_~z~0 < f_~k~0); 633#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 631#L6 assume !(0 == __VERIFIER_assert_~cond); 632#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 647#L24 assume 0 != f_~c~0 % 256; 648#L25 [2020-11-30 01:30:38,719 INFO L796 eck$LassoCheckResult]: Loop: 648#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 643#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 644#L24 assume 0 != f_~c~0 % 256; 648#L25 [2020-11-30 01:30:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:38,719 INFO L82 PathProgramCache]: Analyzing trace with hash -147302638, now seen corresponding path program 1 times [2020-11-30 01:30:38,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:38,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457445950] [2020-11-30 01:30:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash 77298, now seen corresponding path program 1 times [2020-11-30 01:30:38,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:38,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477092670] [2020-11-30 01:30:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,752 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,754 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:38,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:38,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735361, now seen corresponding path program 1 times [2020-11-30 01:30:38,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:38,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577906687] [2020-11-30 01:30:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:38,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:38,785 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:38,824 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:38,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:38,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:38,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:38,825 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:30:38,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:38,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:38,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:38,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Loop [2020-11-30 01:30:38,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:38,825 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:38,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:38,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:38,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:38,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:39,025 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:39,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:39,037 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:39,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:39,051 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet10=36, ULTIMATE.start_f_~c~0=36} Honda state: {ULTIMATE.start_f_#t~nondet10=36, ULTIMATE.start_f_~c~0=36} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:39,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:39,092 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:39,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:30:39,136 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:39,154 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:39,154 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-5}, {ULTIMATE.start_f_~z~0=5}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:39,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:39,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:30:39,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:39,190 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=160, ULTIMATE.start_f_#t~nondet11=160} Honda state: {ULTIMATE.start_f_~y~0=160, ULTIMATE.start_f_#t~nondet11=160} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:39,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:39,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:30:39,216 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:39,216 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-30 01:30:39,533 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-11-30 01:30:39,730 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-11-30 01:30:39,732 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:39,732 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:39,732 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:39,732 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:39,732 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:39,732 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:39,732 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:39,732 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:39,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Lasso [2020-11-30 01:30:39,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:39,732 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:39,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:39,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:40,298 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:40,298 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,389 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 [2020-11-30 01:30:40,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:40,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:40,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:40,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:40,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:40,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:40,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:40,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:40,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:40,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:40,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:40,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:40,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,601 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 [2020-11-30 01:30:40,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,899 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 [2020-11-30 01:30:40,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,930 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 [2020-11-30 01:30:40,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:40,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:40,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:40,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:40,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:40,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:40,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:40,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:40,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:41,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:41,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:41,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:41,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:41,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:41,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:41,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:41,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:41,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:41,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:41,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:41,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:41,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:41,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:41,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:41,076 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:41,081 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 01:30:41,082 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:41,084 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:41,086 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:41,086 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:41,087 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-11-30 01:30:41,131 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:41,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:41,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:41,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:41,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:41,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-30 01:30:41,215 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 15 Second operand 5 states. [2020-11-30 01:30:41,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 37 states and 49 transitions. Complement of second has 7 states. [2020-11-30 01:30:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 01:30:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-11-30 01:30:41,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-30 01:30:41,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:41,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-11-30 01:30:41,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:41,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-11-30 01:30:41,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:41,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2020-11-30 01:30:41,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 01:30:41,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2020-11-30 01:30:41,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-30 01:30:41,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 01:30:41,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2020-11-30 01:30:41,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:41,274 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-11-30 01:30:41,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2020-11-30 01:30:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-11-30 01:30:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 01:30:41,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-11-30 01:30:41,277 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-11-30 01:30:41,277 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-11-30 01:30:41,277 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 01:30:41,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2020-11-30 01:30:41,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 01:30:41,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:41,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:41,278 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:41,278 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 01:30:41,278 INFO L794 eck$LassoCheckResult]: Stem: 808#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 806#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 794#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 790#L16-1 assume !!(f_~k~0 <= 1073741823); 791#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 792#L19-4 assume !(f_~z~0 < f_~k~0); 793#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 815#L6-3 assume !(0 == __VERIFIER_assert_~cond); 816#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 805#L24-3 assume 0 != f_~c~0 % 256; 807#L25-1 [2020-11-30 01:30:41,278 INFO L796 eck$LassoCheckResult]: Loop: 807#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 801#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 802#L24-3 assume 0 != f_~c~0 % 256; 807#L25-1 [2020-11-30 01:30:41,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:41,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485038, now seen corresponding path program 1 times [2020-11-30 01:30:41,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:41,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302055820] [2020-11-30 01:30:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,299 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:41,300 INFO L82 PathProgramCache]: Analyzing trace with hash 127941, now seen corresponding path program 1 times [2020-11-30 01:30:41,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:41,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145391907] [2020-11-30 01:30:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:41,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:41,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804396, now seen corresponding path program 1 times [2020-11-30 01:30:41,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:41,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680631810] [2020-11-30 01:30:41,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:41,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:41,333 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:41,372 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:41,372 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:41,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:41,372 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:41,372 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:30:41,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:41,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:41,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:41,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Loop [2020-11-30 01:30:41,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:41,372 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:41,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:41,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:41,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:41,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:41,549 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:41,549 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:41,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:41,557 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:41,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:41,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet10=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet10=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:41,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:41,608 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:41,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:30:41,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:30:41,653 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:41,653 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-5}, {ULTIMATE.start_f_~z~0=5}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:41,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:41,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:30:41,683 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:41,683 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=48, ULTIMATE.start_f_#t~nondet11=48} Honda state: {ULTIMATE.start_f_~y~0=48, ULTIMATE.start_f_#t~nondet11=48} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:41,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:30:41,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:30:41,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:30:41,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-30 01:30:41,990 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-11-30 01:30:42,182 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-11-30 01:30:42,183 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:42,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:42,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:42,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:42,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:42,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:42,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:42,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:42,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Lasso [2020-11-30 01:30:42,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:42,184 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:42,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:42,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:42,817 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:42,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:42,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:42,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:42,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:42,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:42,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:42,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:42,846 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:42,853 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-30 01:30:42,853 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:42,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:42,857 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-11-30 01:30:42,857 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:42,857 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~x~0 >= 0, 1*ULTIMATE.start_f_~d - 2 >= 0] [2020-11-30 01:30:42,899 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-30 01:30:42,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:42,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:42,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:42,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:42,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:42,984 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-30 01:30:42,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 18 Second operand 5 states. [2020-11-30 01:30:43,030 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 7 states. [2020-11-30 01:30:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 01:30:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-11-30 01:30:43,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-30 01:30:43,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:43,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-11-30 01:30:43,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:43,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-11-30 01:30:43,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:43,036 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2020-11-30 01:30:43,037 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:43,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2020-11-30 01:30:43,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-30 01:30:43,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 01:30:43,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2020-11-30 01:30:43,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:43,038 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-11-30 01:30:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2020-11-30 01:30:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-11-30 01:30:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 01:30:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2020-11-30 01:30:43,041 INFO L714 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-11-30 01:30:43,041 INFO L594 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-11-30 01:30:43,041 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-30 01:30:43,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2020-11-30 01:30:43,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:43,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:43,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:43,043 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:43,043 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:43,043 INFO L794 eck$LassoCheckResult]: Stem: 988#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 985#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 974#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 975#L16 assume !!(f_~k~0 <= 1073741823); 976#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 980#L19-1 assume !(f_~z~0 < f_~k~0); 979#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 977#L6 assume !(0 == __VERIFIER_assert_~cond); 978#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1002#L24 assume 0 != f_~c~0 % 256; 999#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1000#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1006#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 989#L24-2 [2020-11-30 01:30:43,043 INFO L796 eck$LassoCheckResult]: Loop: 989#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 990#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 989#L24-2 [2020-11-30 01:30:43,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:43,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735365, now seen corresponding path program 1 times [2020-11-30 01:30:43,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:43,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884444984] [2020-11-30 01:30:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:43,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:43,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 3 times [2020-11-30 01:30:43,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:43,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371529655] [2020-11-30 01:30:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,081 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:43,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:43,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1658190188, now seen corresponding path program 2 times [2020-11-30 01:30:43,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:43,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763472118] [2020-11-30 01:30:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:43,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:43,120 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:43,589 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-11-30 01:30:43,831 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-11-30 01:30:43,836 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:43,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:43,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:43,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:43,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:43,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:43,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:43,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:43,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration8_Lasso [2020-11-30 01:30:43,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:43,836 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:43,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:43,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:44,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:44,380 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:44,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,413 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 [2020-11-30 01:30:44,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:44,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,511 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,511 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:44,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:44,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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) [2020-11-30 01:30:44,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:44,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:44,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:44,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:44,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:44,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:44,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:44,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:44,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:44,916 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:44,922 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 01:30:44,922 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:44,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:44,926 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:44,926 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:44,926 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-11-30 01:30:44,973 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:44,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:45,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:45,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:45,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:45,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:45,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-11-30 01:30:45,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 55 states and 72 transitions. Complement of second has 6 states. [2020-11-30 01:30:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:45,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-30 01:30:45,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-30 01:30:45,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:45,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:45,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:45,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-11-30 01:30:45,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:45,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2020-11-30 01:30:45,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:45,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 62 transitions. [2020-11-30 01:30:45,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-11-30 01:30:45,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-30 01:30:45,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2020-11-30 01:30:45,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:45,128 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-30 01:30:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2020-11-30 01:30:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-11-30 01:30:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:30:45,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-11-30 01:30:45,130 INFO L714 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-11-30 01:30:45,130 INFO L594 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-11-30 01:30:45,130 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-30 01:30:45,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 60 transitions. [2020-11-30 01:30:45,131 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:45,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:45,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:45,131 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:45,131 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:45,132 INFO L794 eck$LassoCheckResult]: Stem: 1185#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1182#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1171#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1167#L16-1 assume !!(f_~k~0 <= 1073741823); 1168#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1169#L19-4 assume !(f_~z~0 < f_~k~0); 1170#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1196#L6-3 assume !(0 == __VERIFIER_assert_~cond); 1197#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1200#L24-3 assume 0 != f_~c~0 % 256; 1193#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1194#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1201#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1178#L24-5 [2020-11-30 01:30:45,132 INFO L796 eck$LassoCheckResult]: Loop: 1178#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1179#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1178#L24-5 [2020-11-30 01:30:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804392, now seen corresponding path program 1 times [2020-11-30 01:30:45,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:45,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318099650] [2020-11-30 01:30:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:45,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,191 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 2 times [2020-11-30 01:30:45,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:45,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725959279] [2020-11-30 01:30:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:45,203 INFO L82 PathProgramCache]: Analyzing trace with hash -489749665, now seen corresponding path program 2 times [2020-11-30 01:30:45,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:45,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219779950] [2020-11-30 01:30:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:45,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:45,235 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:45,645 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2020-11-30 01:30:45,920 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-11-30 01:30:45,922 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:45,922 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:45,922 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:45,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:45,923 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:45,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:45,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:45,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:45,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration9_Lasso [2020-11-30 01:30:45,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:45,923 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:45,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:45,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:46,538 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:46,538 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:46,540 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 [2020-11-30 01:30:46,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:46,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:46,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:46,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:46,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:46,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:46,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/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 [2020-11-30 01:30:46,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:46,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:46,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:46,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:46,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:46,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:46,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:46,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:46,605 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 01:30:46,605 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:46,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:46,611 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:46,611 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:46,611 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-11-30 01:30:46,676 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:46,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:46,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:46,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:46,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:46,777 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:46,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 60 transitions. cyclomatic complexity: 25 Second operand 4 states. [2020-11-30 01:30:46,841 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 60 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 6 states. [2020-11-30 01:30:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-30 01:30:46,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-30 01:30:46,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:46,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:46,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:46,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-11-30 01:30:46,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:46,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-11-30 01:30:46,844 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:46,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 55 states and 72 transitions. [2020-11-30 01:30:46,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-11-30 01:30:46,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-11-30 01:30:46,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 72 transitions. [2020-11-30 01:30:46,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:46,846 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 72 transitions. [2020-11-30 01:30:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 72 transitions. [2020-11-30 01:30:46,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-30 01:30:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-30 01:30:46,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2020-11-30 01:30:46,850 INFO L714 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-11-30 01:30:46,850 INFO L594 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-11-30 01:30:46,850 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-30 01:30:46,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 70 transitions. [2020-11-30 01:30:46,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 01:30:46,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:46,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:46,858 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:46,858 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:46,858 INFO L794 eck$LassoCheckResult]: Stem: 1401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1396#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1384#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1385#L16 assume !!(f_~k~0 <= 1073741823); 1386#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1390#L19-1 assume !(f_~z~0 < f_~k~0); 1389#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1387#L6 assume !(0 == __VERIFIER_assert_~cond); 1388#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1402#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1424#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1406#L24 assume 0 != f_~c~0 % 256; 1407#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1422#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1421#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1420#L24-2 [2020-11-30 01:30:46,858 INFO L796 eck$LassoCheckResult]: Loop: 1420#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1419#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1420#L24-2 [2020-11-30 01:30:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1768176638, now seen corresponding path program 3 times [2020-11-30 01:30:46,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140108634] [2020-11-30 01:30:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 4 times [2020-11-30 01:30:46,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724915625] [2020-11-30 01:30:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,930 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:46,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1589298715, now seen corresponding path program 4 times [2020-11-30 01:30:46,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:46,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390145162] [2020-11-30 01:30:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:46,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:46,976 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:47,482 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-11-30 01:30:47,640 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-30 01:30:47,642 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:47,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:47,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:47,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:47,642 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:47,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:47,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:47,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:47,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration10_Lasso [2020-11-30 01:30:47,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:47,642 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:47,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:47,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:48,141 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:48,141 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:48,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:48,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:48,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:30:48,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:48,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:48,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:48,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:30:48,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:30:48,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:48,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:48,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:48,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:48,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:48,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:48,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:48,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:48,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:48,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:48,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:48,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:48,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:48,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:48,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:48,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:48,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:48,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:48,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:48,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:48,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:48,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:48,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:48,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:48,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:48,259 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 01:30:48,259 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 01:30:48,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:48,264 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:48,264 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:48,264 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-11-30 01:30:48,313 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:48,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:48,404 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:48,404 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-11-30 01:30:48,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 61 states and 78 transitions. Complement of second has 6 states. [2020-11-30 01:30:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-30 01:30:48,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:48,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:48,457 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 01:30:48,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:48,538 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:48,539 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-11-30 01:30:48,589 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 61 states and 78 transitions. Complement of second has 6 states. [2020-11-30 01:30:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-11-30 01:30:48,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:48,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:48,591 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 01:30:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:48,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:48,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:48,689 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:48,689 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-11-30 01:30:48,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 64 states and 83 transitions. Complement of second has 5 states. [2020-11-30 01:30:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-11-30 01:30:48,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:48,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:48,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 01:30:48,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:48,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-30 01:30:48,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:48,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 83 transitions. [2020-11-30 01:30:48,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 01:30:48,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 28 states and 36 transitions. [2020-11-30 01:30:48,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 01:30:48,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-30 01:30:48,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2020-11-30 01:30:48,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 01:30:48,733 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 01:30:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2020-11-30 01:30:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 01:30:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 01:30:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-30 01:30:48,735 INFO L714 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 01:30:48,735 INFO L594 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 01:30:48,735 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-30 01:30:48,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2020-11-30 01:30:48,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 01:30:48,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:48,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:48,737 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:48,737 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 01:30:48,737 INFO L794 eck$LassoCheckResult]: Stem: 1861#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1851#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1852#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1853#L16-1 assume !!(f_~k~0 <= 1073741823); 1854#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1855#L19-4 assume !(f_~z~0 < f_~k~0); 1856#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1868#L6-3 assume !(0 == __VERIFIER_assert_~cond); 1864#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1865#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1878#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1877#L24-3 assume 0 != f_~c~0 % 256; 1874#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1873#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1871#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1870#L24-5 [2020-11-30 01:30:48,737 INFO L796 eck$LassoCheckResult]: Loop: 1870#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1869#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1870#L24-5 [2020-11-30 01:30:48,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,737 INFO L82 PathProgramCache]: Analyzing trace with hash -379763215, now seen corresponding path program 3 times [2020-11-30 01:30:48,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:48,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027011377] [2020-11-30 01:30:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,780 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:48,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,780 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 3 times [2020-11-30 01:30:48,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:48,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541039387] [2020-11-30 01:30:48,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:48,785 INFO L82 PathProgramCache]: Analyzing trace with hash 119773560, now seen corresponding path program 4 times [2020-11-30 01:30:48,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:48,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648304584] [2020-11-30 01:30:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:48,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:48,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:49,243 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-11-30 01:30:49,358 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-30 01:30:49,360 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:30:49,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:30:49,360 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:30:49,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:30:49,360 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:30:49,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:49,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:30:49,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:30:49,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration11_Lasso [2020-11-30 01:30:49,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:30:49,360 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:30:49,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:30:49,867 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:30:49,868 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:49,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:49,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:49,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:49,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:49,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:49,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:49,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:49,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:49,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 01:30:49,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:30:49,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:30:49,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:30:49,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:30:49,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:30:49,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 01:30:49,913 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:30:49,921 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 01:30:49,921 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c2b1e49-6b7d-4927-9de7-bb6dea260213/bin/uautomizer/z3 Starting monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:30:49,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:30:49,925 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 01:30:49,925 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:30:49,925 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-11-30 01:30:49,967 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-30 01:30:49,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:50,042 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:50,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-11-30 01:30:50,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 36 states and 44 transitions. Complement of second has 6 states. [2020-11-30 01:30:50,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:50,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-30 01:30:50,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:50,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:50,080 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 01:30:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:50,155 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:50,155 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-11-30 01:30:50,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 36 states and 44 transitions. Complement of second has 6 states. [2020-11-30 01:30:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-30 01:30:50,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:50,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:50,186 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 01:30:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:50,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 01:30:50,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:30:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:50,298 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 01:30:50,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-11-30 01:30:50,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 39 states and 49 transitions. Complement of second has 5 states. [2020-11-30 01:30:50,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:30:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 01:30:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-30 01:30:50,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 01:30:50,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:50,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 01:30:50,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:50,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-30 01:30:50,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:30:50,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2020-11-30 01:30:50,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:30:50,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2020-11-30 01:30:50,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:30:50,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:30:50,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:30:50,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:50,344 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:30:50,344 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:30:50,344 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:30:50,344 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-30 01:30:50,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:30:50,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:30:50,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:30:50,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:30:50 BoogieIcfgContainer [2020-11-30 01:30:50,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:30:50,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:30:50,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:30:50,351 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:30:50,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:29" (3/4) ... [2020-11-30 01:30:50,355 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:30:50,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:30:50,357 INFO L168 Benchmark]: Toolchain (without parser) took 21922.67 ms. Allocated memory was 102.8 MB in the beginning and 243.3 MB in the end (delta: 140.5 MB). Free memory was 66.1 MB in the beginning and 199.2 MB in the end (delta: -133.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:50,357 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 102.8 MB. Free memory is still 82.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:50,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.80 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 78.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:50,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.41 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 77.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:50,358 INFO L168 Benchmark]: Boogie Preprocessor took 39.26 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:50,358 INFO L168 Benchmark]: RCFGBuilder took 398.16 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 61.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:50,359 INFO L168 Benchmark]: BuchiAutomizer took 21121.71 ms. Allocated memory was 102.8 MB in the beginning and 243.3 MB in the end (delta: 140.5 MB). Free memory was 61.1 MB in the beginning and 199.2 MB in the end (delta: -138.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:50,359 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 243.3 MB. Free memory is still 199.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:50,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 102.8 MB. Free memory is still 82.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.80 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 78.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.41 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 77.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.26 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 398.16 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 61.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 21121.71 ms. Allocated memory was 102.8 MB in the beginning and 243.3 MB in the end (delta: 140.5 MB). Free memory was 61.1 MB in the beginning and 199.2 MB in the end (delta: -138.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 243.3 MB. Free memory is still 199.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 21.0s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 18.5s. Construction of modules took 0.3s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 53 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 262 SDtfs, 445 SDslu, 108 SDs, 0 SdLazy, 164 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf97 lsp53 ukn56 mio100 lsp65 div348 bol100 ite100 ukn100 eq142 hnf45 smp85 dnf100 smp100 tf102 neg98 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 83ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...