./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 447515879dde6ddadac2168313caab8f63c0c815 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:12:55,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:12:55,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:12:55,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:12:55,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:12:55,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:12:55,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:12:55,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:12:55,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:12:55,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:12:55,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:12:55,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:12:55,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:12:55,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:12:55,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:12:55,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:12:55,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:12:55,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:12:55,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:12:55,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:12:55,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:12:55,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:12:55,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:12:55,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:12:55,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:12:55,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:12:55,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:12:55,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:12:55,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:12:55,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:12:55,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:12:55,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:12:55,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:12:55,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:12:55,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:12:55,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:12:55,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:12:55,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:12:55,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:12:55,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:12:55,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:12:55,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:12:55,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:12:55,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:12:55,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:12:55,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:12:55,338 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:12:55,338 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:12:55,339 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:12:55,339 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:12:55,339 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:12:55,339 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:12:55,340 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:12:55,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:12:55,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:12:55,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:12:55,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:12:55,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:12:55,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:12:55,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:12:55,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:12:55,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:12:55,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:12:55,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:12:55,342 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:12:55,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:12:55,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:12:55,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:12:55,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:12:55,344 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:12:55,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:12:55,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:12:55,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:12:55,345 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:12:55,348 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:12:55,348 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_d25bbbb8-293a-4954-b198-673594699214/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 447515879dde6ddadac2168313caab8f63c0c815 [2020-11-30 00:12:55,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:12:55,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:12:55,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:12:55,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:12:55,701 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:12:55,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/../../sv-benchmarks/c/loops/trex01-2.i [2020-11-30 00:12:55,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/data/ac2e17f67/6358a132fb614801b5347ca0bf06a1c9/FLAGea39b323d [2020-11-30 00:12:56,296 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:12:56,297 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/sv-benchmarks/c/loops/trex01-2.i [2020-11-30 00:12:56,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/data/ac2e17f67/6358a132fb614801b5347ca0bf06a1c9/FLAGea39b323d [2020-11-30 00:12:56,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/data/ac2e17f67/6358a132fb614801b5347ca0bf06a1c9 [2020-11-30 00:12:56,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:12:56,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:12:56,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:56,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:12:56,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:12:56,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:56,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d1a3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56, skipping insertion in model container [2020-11-30 00:12:56,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:56,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:12:56,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:12:56,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:56,929 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:12:56,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:56,985 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:12:56,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56 WrapperNode [2020-11-30 00:12:56,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:56,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:56,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:12:56,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:12:56,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:57,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:12:57,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:12:57,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:12:57,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... [2020-11-30 00:12:57,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:12:57,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:12:57,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:12:57,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:12:57,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:12:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:12:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:12:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:12:57,556 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:12:57,565 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 00:12:57,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:57 BoogieIcfgContainer [2020-11-30 00:12:57,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:12:57,568 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:12:57,568 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:12:57,571 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:12:57,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:57,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:12:56" (1/3) ... [2020-11-30 00:12:57,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@347c247b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:12:57, skipping insertion in model container [2020-11-30 00:12:57,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:57,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:56" (2/3) ... [2020-11-30 00:12:57,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@347c247b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:12:57, skipping insertion in model container [2020-11-30 00:12:57,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:57,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:57" (3/3) ... [2020-11-30 00:12:57,577 INFO L373 chiAutomizerObserver]: Analyzing ICFG trex01-2.i [2020-11-30 00:12:57,643 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:12:57,643 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:12:57,643 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:12:57,643 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:12:57,644 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:12:57,644 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:12:57,644 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:12:57,644 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:12:57,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-11-30 00:12:57,678 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 00:12:57,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:12:57,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:12:57,683 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:12:57,683 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:12:57,683 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:12:57,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states. [2020-11-30 00:12:57,686 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 00:12:57,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:12:57,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:12:57,687 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:12:57,687 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:12:57,694 INFO L794 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 26#L50true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 6#L27true assume !!(f_~k~0 <= 1073741823); 23#L30-2true [2020-11-30 00:12:57,695 INFO L796 eck$LassoCheckResult]: Loop: 23#L30-2true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L30-2true [2020-11-30 00:12:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:57,701 INFO L82 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2020-11-30 00:12:57,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:57,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379794544] [2020-11-30 00:12:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:57,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:57,847 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-11-30 00:12:57,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:57,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640781563] [2020-11-30 00:12:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash 28693899, now seen corresponding path program 1 times [2020-11-30 00:12:57,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:57,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118296450] [2020-11-30 00:12:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:57,932 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:57,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:58,151 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-11-30 00:12:58,254 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:12:58,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:12:58,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:12:58,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:12:58,256 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:12:58,256 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:58,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:12:58,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:12:58,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration1_Lasso [2020-11-30 00:12:58,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:12:58,257 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:12:58,282 INFO 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 00:12:58,287 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 00:12:58,357 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 00:12:58,361 INFO 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 00:12:58,364 INFO 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 00:12:58,368 INFO 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 00:12:58,375 INFO 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 00:12:58,378 INFO 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 00:12:58,382 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 00:12:58,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:12:58,392 INFO 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 00:12:58,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:12:58,410 INFO 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 00:12:58,424 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 00:12:58,429 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 00:12:58,433 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 00:12:58,441 INFO 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 00:12:58,749 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:12:58,755 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:58,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:58,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:58,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:58,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:58,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:58,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:58,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:58,771 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 00:12:58,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:12:58,815 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 00:12:58,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:58,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:58,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:58,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:58,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:58,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:58,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:12:58,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:58,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:58,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:58,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:58,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:58,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:58,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:58,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:12:58,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:58,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:58,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:58,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:58,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:58,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:58,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:58,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:58,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:58,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:58,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:58,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:58,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:58,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:58,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:58,997 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,040 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 00:12:59,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:12:59,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,145 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 00:12:59,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,187 INFO L402 nArgumentSynthesizer]: A total of 2 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 00:12:59,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:12:59,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,298 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 00:12:59,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:12:59,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:12:59,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:12:59,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,471 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 00:12:59,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:12:59,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:12:59,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:12:59,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:12:59,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,661 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 00:12:59,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:59,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:59,663 INFO L402 nArgumentSynthesizer]: A total of 0 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 00:12:59,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:12:59,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:12:59,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:12:59,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:59,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:59,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:59,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:59,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:59,753 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 00:12:59,763 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:12:59,893 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:12:59,894 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_d25bbbb8-293a-4954-b198-673594699214/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 00:12:59,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:59,930 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:12:59,930 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:12:59,931 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 00:12:59,977 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:00,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:00,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:13:00,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:00,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:00,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:00,050 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 00:13:00,064 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 00:13:00,065 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states. Second operand 3 states. [2020-11-30 00:13:00,180 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states.. Second operand 3 states. Result 92 states and 139 transitions. Complement of second has 7 states. [2020-11-30 00:13:00,182 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 00:13:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:13:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 105 transitions. [2020-11-30 00:13:00,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 105 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-30 00:13:00,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:00,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 105 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-30 00:13:00,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:00,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 105 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:13:00,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:00,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 139 transitions. [2020-11-30 00:13:00,227 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2020-11-30 00:13:00,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 30 states and 38 transitions. [2020-11-30 00:13:00,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-11-30 00:13:00,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-11-30 00:13:00,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2020-11-30 00:13:00,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:13:00,256 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-30 00:13:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2020-11-30 00:13:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-11-30 00:13:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 00:13:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2020-11-30 00:13:00,287 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2020-11-30 00:13:00,287 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2020-11-30 00:13:00,288 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:13:00,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2020-11-30 00:13:00,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-11-30 00:13:00,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:00,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:00,292 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:13:00,292 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 00:13:00,293 INFO L794 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 208#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 207#L50 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 193#L27-1 assume !!(f_~k~0 <= 1073741823); 194#L30-6 [2020-11-30 00:13:00,294 INFO L796 eck$LassoCheckResult]: Loop: 194#L30-6 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 194#L30-6 [2020-11-30 00:13:00,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash 927945, now seen corresponding path program 1 times [2020-11-30 00:13:00,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:00,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369263659] [2020-11-30 00:13:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,351 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:00,352 INFO L82 PathProgramCache]: Analyzing trace with hash 124, now seen corresponding path program 1 times [2020-11-30 00:13:00,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:00,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68167071] [2020-11-30 00:13:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:00,359 INFO L82 PathProgramCache]: Analyzing trace with hash 28766388, now seen corresponding path program 1 times [2020-11-30 00:13:00,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:00,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583513843] [2020-11-30 00:13:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,369 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:00,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:00,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:00,524 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-11-30 00:13:00,587 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:00,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:00,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:00,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:00,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:00,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:00,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:00,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:00,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration2_Lasso [2020-11-30 00:13:00,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:00,588 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:00,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:00,618 INFO 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 00:13:00,632 INFO 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 00:13:00,634 INFO 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 00:13:00,637 INFO 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 00:13:00,638 INFO 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 00:13:00,645 INFO 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 00:13:00,647 INFO 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 00:13:00,701 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 00:13:00,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:00,725 INFO 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 00:13:00,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:00,741 INFO 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 00:13:00,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:00,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:00,752 INFO 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 00:13:00,754 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 00:13:01,047 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:01,048 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,065 INFO L402 nArgumentSynthesizer]: A total of 0 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 00:13:01,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:01,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:01,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:01,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:01,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:01,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:01,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,287 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 00:13:01,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:01,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:01,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:01,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,377 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:01,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,537 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 00:13:01,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:01,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:01,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:01,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:01,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:01,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:01,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:01,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:01,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:01,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:01,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:01,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:01,798 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 00:13:01,798 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_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:01,800 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:01,803 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:01,803 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:01,803 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~k~0, ULTIMATE.start_f_~z~0) = 1*ULTIMATE.start_f_~k~0 - 1*ULTIMATE.start_f_~z~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-11-30 00:13:01,857 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:01,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:13:01,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:01,931 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:01,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:01,931 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 00:13:01,932 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 00:13:01,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-30 00:13:02,001 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 39 states and 50 transitions. Complement of second has 6 states. [2020-11-30 00:13:02,002 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 00:13:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:13:02,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-11-30 00:13:02,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-30 00:13:02,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:02,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-30 00:13:02,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:02,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:13:02,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:02,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2020-11-30 00:13:02,005 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-11-30 00:13:02,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 31 states and 40 transitions. [2020-11-30 00:13:02,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-11-30 00:13:02,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-11-30 00:13:02,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2020-11-30 00:13:02,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:13:02,007 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-30 00:13:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2020-11-30 00:13:02,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2020-11-30 00:13:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-30 00:13:02,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-11-30 00:13:02,009 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-11-30 00:13:02,012 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-11-30 00:13:02,013 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:13:02,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2020-11-30 00:13:02,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:13:02,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:02,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:02,017 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:02,018 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:02,018 INFO L794 eck$LassoCheckResult]: Stem: 334#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 333#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 332#L50 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 322#L27 assume !!(f_~k~0 <= 1073741823); 323#L30-2 assume !(f_~z~0 < f_~k~0); 324#L30-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 325#L18 assume !(0 == __VERIFIER_assert_~cond); 320#L18-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 321#L34 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 339#L35 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 328#L38-2 [2020-11-30 00:13:02,020 INFO L796 eck$LassoCheckResult]: Loop: 328#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 326#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 328#L38-2 [2020-11-30 00:13:02,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,020 INFO L82 PathProgramCache]: Analyzing trace with hash 718497116, now seen corresponding path program 1 times [2020-11-30 00:13:02,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581509839] [2020-11-30 00:13:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,052 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,064 INFO L82 PathProgramCache]: Analyzing trace with hash 3048, now seen corresponding path program 1 times [2020-11-30 00:13:02,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233144491] [2020-11-30 00:13:02,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,079 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:02,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1014004093, now seen corresponding path program 1 times [2020-11-30 00:13:02,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:02,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952545948] [2020-11-30 00:13:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:02,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:02,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:02,406 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-11-30 00:13:02,578 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-11-30 00:13:02,586 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:02,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:02,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:02,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:02,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:02,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:02,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:02,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:02,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration3_Lasso [2020-11-30 00:13:02,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:02,587 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:02,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:02,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:02,598 INFO 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 00:13:02,637 INFO 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 00:13:02,640 INFO 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 00:13:02,646 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 00:13:02,649 INFO 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 00:13:02,657 INFO 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 00:13:02,670 INFO 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 00:13:02,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:02,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:02,686 INFO 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 00:13:02,689 INFO 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 00:13:02,695 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 00:13:02,697 INFO 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 00:13:02,702 INFO 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 00:13:03,048 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:03,048 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:03,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:03,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:03,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:03,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:03,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:03,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,152 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:03,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:03,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:03,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,323 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 00:13:03,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,372 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 00:13:03,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:03,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:03,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:03,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:03,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:03,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:03,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:03,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,549 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 Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:03,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:03,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:03,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:03,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:03,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:03,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:03,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:03,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:03,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:03,629 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:13:03,629 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_d25bbbb8-293a-4954-b198-673594699214/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 00:13:03,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:03,633 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:03,633 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:03,633 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 00:13:03,661 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:03,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:03,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:03,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:03,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:03,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:03,754 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 00:13:03,754 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 00:13:03,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 32 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 00:13:03,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 32 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 31 states and 40 transitions. Complement of second has 6 states. [2020-11-30 00:13:03,791 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 00:13:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-30 00:13:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:13:03,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:13:03,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:03,792 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-30 00:13:03,792 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:03,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2020-11-30 00:13:03,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:13:03,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 39 transitions. [2020-11-30 00:13:03,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-11-30 00:13:03,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-30 00:13:03,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2020-11-30 00:13:03,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:03,795 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-30 00:13:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2020-11-30 00:13:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-11-30 00:13:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 00:13:03,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-11-30 00:13:03,796 INFO L714 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-11-30 00:13:03,796 INFO L594 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-11-30 00:13:03,796 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:13:03,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2020-11-30 00:13:03,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:13:03,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:03,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:03,798 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:03,798 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:03,798 INFO L794 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 475#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 474#L50 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 458#L27-1 assume !!(f_~k~0 <= 1073741823); 459#L30-6 assume !(f_~z~0 < f_~k~0); 480#L30-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 456#L18-3 assume !(0 == __VERIFIER_assert_~cond); 457#L18-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 477#L34-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 478#L35-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 467#L38-5 [2020-11-30 00:13:03,798 INFO L796 eck$LassoCheckResult]: Loop: 467#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 479#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 467#L38-5 [2020-11-30 00:13:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1617484252, now seen corresponding path program 1 times [2020-11-30 00:13:03,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113481044] [2020-11-30 00:13:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,820 INFO L82 PathProgramCache]: Analyzing trace with hash 5384, now seen corresponding path program 1 times [2020-11-30 00:13:03,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363570126] [2020-11-30 00:13:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,827 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:03,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:03,828 INFO L82 PathProgramCache]: Analyzing trace with hash -375790557, now seen corresponding path program 1 times [2020-11-30 00:13:03,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:03,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869893656] [2020-11-30 00:13:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:03,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:03,852 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:04,047 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-11-30 00:13:04,206 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-30 00:13:04,208 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:04,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:04,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:04,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:04,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:04,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:04,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:04,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration4_Lasso [2020-11-30 00:13:04,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:04,209 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:04,211 INFO 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 00:13:04,217 INFO 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 00:13:04,220 INFO 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 00:13:04,222 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 00:13:04,224 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 00:13:04,226 INFO 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 00:13:04,228 INFO 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 00:13:04,230 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 00:13:04,232 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 00:13:04,234 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 00:13:04,244 INFO 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 00:13:04,246 INFO 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 00:13:04,250 INFO 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 00:13:04,255 INFO 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 00:13:04,263 INFO 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 00:13:04,305 INFO 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 00:13:04,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:04,561 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:04,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:04,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:04,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:04,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:04,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:04,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:04,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:04,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:04,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:04,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:04,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:04,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:04,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:04,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:04,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:04,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:04,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:04,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:04,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:04,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:04,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:04,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:04,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:04,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:04,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:04,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:04,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:04,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:04,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:04,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:04,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:04,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:04,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:04,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:04,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:04,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:04,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,848 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 00:13:04,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:04,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:04,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:04,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:04,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:04,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:04,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:04,869 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 00:13:04,869 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_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:04,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:04,873 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:04,873 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:04,873 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 00:13:04,900 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:04,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:04,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:04,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:04,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:04,982 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 00:13:04,982 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 00:13:04,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-11-30 00:13:05,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 46 transitions. Complement of second has 6 states. [2020-11-30 00:13:05,038 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 00:13:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-30 00:13:05,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:13:05,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:05,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:13:05,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:05,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-30 00:13:05,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:05,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-11-30 00:13:05,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:13:05,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 45 transitions. [2020-11-30 00:13:05,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-11-30 00:13:05,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-11-30 00:13:05,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 45 transitions. [2020-11-30 00:13:05,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:05,041 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-30 00:13:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 45 transitions. [2020-11-30 00:13:05,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-11-30 00:13:05,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 00:13:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2020-11-30 00:13:05,043 INFO L714 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-11-30 00:13:05,043 INFO L594 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-11-30 00:13:05,043 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:13:05,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 44 transitions. [2020-11-30 00:13:05,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:13:05,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:05,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:05,044 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:05,044 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:13:05,044 INFO L794 eck$LassoCheckResult]: Stem: 626#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 623#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 622#L50 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 610#L27 assume !!(f_~k~0 <= 1073741823); 611#L30-2 assume !(f_~z~0 < f_~k~0); 612#L30-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 613#L18 assume !(0 == __VERIFIER_assert_~cond); 608#L18-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 609#L34 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 633#L35 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 635#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 614#L38 assume 0 != f_~c~0 % 256; 615#L39 [2020-11-30 00:13:05,045 INFO L796 eck$LassoCheckResult]: Loop: 615#L39 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 621#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 636#L38 assume 0 != f_~c~0 % 256; 615#L39 [2020-11-30 00:13:05,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:05,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1014004097, now seen corresponding path program 1 times [2020-11-30 00:13:05,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:05,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801687788] [2020-11-30 00:13:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,067 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:05,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:05,067 INFO L82 PathProgramCache]: Analyzing trace with hash 99144, now seen corresponding path program 1 times [2020-11-30 00:13:05,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:05,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329967959] [2020-11-30 00:13:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,077 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:05,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1690991606, now seen corresponding path program 1 times [2020-11-30 00:13:05,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:05,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32678956] [2020-11-30 00:13:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:05,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:05,114 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:05,142 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:05,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:05,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:05,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:05,143 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:13:05,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:05,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:05,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:05,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration5_Loop [2020-11-30 00:13:05,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:05,143 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:05,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,171 INFO 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 00:13:05,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,180 INFO 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 00:13:05,318 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:05,319 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:05,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:05,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:05,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:05,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet7=-154, ULTIMATE.start_f_~y~0=102} Honda state: {ULTIMATE.start_f_#t~nondet7=-154, ULTIMATE.start_f_~y~0=102} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:05,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:05,354 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:05,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:13:05,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:05,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:05,389 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_d25bbbb8-293a-4954-b198-673594699214/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 00:13:05,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:05,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:05,413 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:05,413 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:05,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:05,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:05,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:05,442 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-55, ULTIMATE.start_f_#t~nondet6=-55} Honda state: {ULTIMATE.start_f_~c~0=-55, ULTIMATE.start_f_#t~nondet6=-55} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-30 00:13:05,684 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2020-11-30 00:13:05,825 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-11-30 00:13:05,836 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:05,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:05,837 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:05,837 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:05,837 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:05,837 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:05,837 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:05,837 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:05,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration5_Lasso [2020-11-30 00:13:05,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:05,837 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:05,839 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 00:13:05,884 INFO 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 00:13:05,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,900 INFO 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 00:13:05,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,930 INFO 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 00:13:05,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,944 INFO 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 00:13:05,946 INFO 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 00:13:05,952 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 00:13:05,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:05,956 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 00:13:05,958 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 00:13:06,296 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:06,296 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:06,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:06,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:06,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:06,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,413 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 00:13:06,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:06,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:06,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:06,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:06,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,538 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 00:13:06,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:06,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:06,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:06,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:06,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:06,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:06,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:06,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:06,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:06,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:06,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:06,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:06,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:06,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:06,734 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:06,742 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:13:06,742 INFO L444 ModelExtractionUtils]: 5 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_d25bbbb8-293a-4954-b198-673594699214/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 00:13:06,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:06,746 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-11-30 00:13:06,746 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:06,746 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0, 1*ULTIMATE.start_f_~x~0 - 1 >= 0] [2020-11-30 00:13:06,776 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2020-11-30 00:13:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:06,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:06,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:06,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:06,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:06,847 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 00:13:06,848 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 00:13:06,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17 Second operand 5 states. [2020-11-30 00:13:06,900 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 43 states and 57 transitions. Complement of second has 7 states. [2020-11-30 00:13:06,901 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 00:13:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:13:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2020-11-30 00:13:06,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 12 letters. Loop has 3 letters. [2020-11-30 00:13:06,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:06,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-30 00:13:06,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:06,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 12 letters. Loop has 6 letters. [2020-11-30 00:13:06,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:06,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2020-11-30 00:13:06,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 00:13:06,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 39 states and 52 transitions. [2020-11-30 00:13:06,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-11-30 00:13:06,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-11-30 00:13:06,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 52 transitions. [2020-11-30 00:13:06,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:06,905 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2020-11-30 00:13:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 52 transitions. [2020-11-30 00:13:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-11-30 00:13:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 00:13:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2020-11-30 00:13:06,909 INFO L714 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-11-30 00:13:06,909 INFO L594 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-11-30 00:13:06,909 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:13:06,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 51 transitions. [2020-11-30 00:13:06,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-30 00:13:06,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:06,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:06,910 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:06,911 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:13:06,911 INFO L794 eck$LassoCheckResult]: Stem: 802#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 801#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 800#L50 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 782#L27-1 assume !!(f_~k~0 <= 1073741823); 783#L30-6 assume !(f_~z~0 < f_~k~0); 810#L30-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 780#L18-3 assume !(0 == __VERIFIER_assert_~cond); 781#L18-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 803#L34-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 804#L35-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 805#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 809#L38-3 assume 0 != f_~c~0 % 256; 795#L39-1 [2020-11-30 00:13:06,911 INFO L796 eck$LassoCheckResult]: Loop: 795#L39-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 796#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 806#L38-3 assume 0 != f_~c~0 % 256; 795#L39-1 [2020-11-30 00:13:06,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:06,911 INFO L82 PathProgramCache]: Analyzing trace with hash -375790561, now seen corresponding path program 1 times [2020-11-30 00:13:06,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:06,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872304564] [2020-11-30 00:13:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,933 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:06,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:06,934 INFO L82 PathProgramCache]: Analyzing trace with hash 171633, now seen corresponding path program 1 times [2020-11-30 00:13:06,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:06,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559845663] [2020-11-30 00:13:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:06,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:06,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1803279763, now seen corresponding path program 1 times [2020-11-30 00:13:06,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:06,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170934926] [2020-11-30 00:13:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:06,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:06,975 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:07,001 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:07,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:07,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:07,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:07,001 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:13:07,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:07,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:07,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:07,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration6_Loop [2020-11-30 00:13:07,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:07,001 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:07,002 INFO 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 00:13:07,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,162 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:07,162 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:07,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:07,166 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:07,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:07,170 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:07,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:07,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:07,206 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:07,206 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-214, ULTIMATE.start_f_#t~nondet6=-214} Honda state: {ULTIMATE.start_f_~c~0=-214, ULTIMATE.start_f_#t~nondet6=-214} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:07,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:07,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:07,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:07,235 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet7=224, ULTIMATE.start_f_~y~0=224} Honda state: {ULTIMATE.start_f_#t~nondet7=224, ULTIMATE.start_f_~y~0=224} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:07,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:13:07,257 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:07,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:13:07,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:13:07,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:13:07,291 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] [2020-11-30 00:13:07,496 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2020-11-30 00:13:07,625 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-30 00:13:07,627 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:07,627 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:07,627 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:07,627 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:07,627 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:07,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:07,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:07,627 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:07,627 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration6_Lasso [2020-11-30 00:13:07,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:07,627 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:07,629 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 00:13:07,632 INFO 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 00:13:07,635 INFO 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 00:13:07,641 INFO 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 00:13:07,650 INFO 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 00:13:07,652 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 00:13:07,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,658 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 00:13:07,660 INFO 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 00:13:07,662 INFO 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 00:13:07,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,669 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 00:13:07,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:07,708 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 00:13:07,710 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 00:13:08,044 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:08,045 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:08,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:08,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:08,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:08,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:08,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:08,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:08,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:08,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:08,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:08,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:08,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:08,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:08,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:08,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:08,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:08,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:08,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:08,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:08,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:08,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:08,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:08,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:08,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:08,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:08,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:08,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:08,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:08,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:08,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:08,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:08,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:08,163 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:08,170 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 00:13:08,170 INFO L444 ModelExtractionUtils]: 4 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_d25bbbb8-293a-4954-b198-673594699214/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 00:13:08,171 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:08,173 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:08,173 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:08,173 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-11-30 00:13:08,203 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:08,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:08,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:08,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:08,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:08,272 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 00:13:08,273 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 00:13:08,273 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 20 Second operand 5 states. [2020-11-30 00:13:08,332 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 48 states and 64 transitions. Complement of second has 7 states. [2020-11-30 00:13:08,333 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 00:13:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:13:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2020-11-30 00:13:08,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 12 letters. Loop has 3 letters. [2020-11-30 00:13:08,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:08,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-30 00:13:08,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:08,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 12 letters. Loop has 6 letters. [2020-11-30 00:13:08,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:08,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2020-11-30 00:13:08,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:08,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 44 states and 59 transitions. [2020-11-30 00:13:08,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-11-30 00:13:08,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-11-30 00:13:08,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 59 transitions. [2020-11-30 00:13:08,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:08,338 INFO L691 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2020-11-30 00:13:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 59 transitions. [2020-11-30 00:13:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2020-11-30 00:13:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-30 00:13:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2020-11-30 00:13:08,342 INFO L714 BuchiCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-11-30 00:13:08,342 INFO L594 BuchiCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-11-30 00:13:08,342 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 00:13:08,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 58 transitions. [2020-11-30 00:13:08,343 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:08,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:08,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:08,344 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:08,344 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:08,344 INFO L794 eck$LassoCheckResult]: Stem: 985#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 984#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 983#L50 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 968#L27 assume !!(f_~k~0 <= 1073741823); 969#L30-2 assume !(f_~z~0 < f_~k~0); 970#L30-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 971#L18 assume !(0 == __VERIFIER_assert_~cond); 966#L18-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 967#L34 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 993#L35 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 995#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1003#L38 assume 0 != f_~c~0 % 256; 980#L39 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 981#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1004#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 973#L38-2 [2020-11-30 00:13:08,344 INFO L796 eck$LassoCheckResult]: Loop: 973#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 972#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 973#L38-2 [2020-11-30 00:13:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1690991602, now seen corresponding path program 1 times [2020-11-30 00:13:08,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:08,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438090307] [2020-11-30 00:13:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,368 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:08,369 INFO L82 PathProgramCache]: Analyzing trace with hash 3048, now seen corresponding path program 2 times [2020-11-30 00:13:08,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:08,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247676419] [2020-11-30 00:13:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:08,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1545289547, now seen corresponding path program 2 times [2020-11-30 00:13:08,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:08,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726986034] [2020-11-30 00:13:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:08,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:08,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:08,751 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2020-11-30 00:13:08,921 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-11-30 00:13:08,925 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:08,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:08,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:08,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:08,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:08,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:08,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:08,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:08,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration7_Lasso [2020-11-30 00:13:08,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:08,926 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:08,927 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 00:13:08,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:08,988 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 00:13:09,008 INFO 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 00:13:09,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,030 INFO 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 00:13:09,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,043 INFO 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 00:13:09,045 INFO 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 00:13:09,048 INFO 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 00:13:09,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:09,427 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:09,427 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:09,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:09,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:09,541 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 00:13:09,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:09,550 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:09,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:09,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:09,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:09,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:09,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:09,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:09,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:09,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:09,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:09,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:09,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:09,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:09,977 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:09,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:10,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:10,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:10,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:10,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:10,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:10,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:10,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:10,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:10,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:10,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:10,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:10,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:10,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:10,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:10,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:10,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:10,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:10,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:10,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:10,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:10,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:10,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:10,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:10,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:10,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:10,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:10,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:10,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:10,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:10,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:10,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:10,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:10,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:10,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:10,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:10,183 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-30 00:13:10,183 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:10,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:10,187 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:10,187 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:10,187 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [999999*ULTIMATE.start_f_~d - 1*ULTIMATE.start_f_~x~0 >= 0] [2020-11-30 00:13:10,218 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:10,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:10,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:10,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:10,311 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:10,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:10,328 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 00:13:10,328 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-30 00:13:10,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 58 transitions. cyclomatic complexity: 23 Second operand 6 states. [2020-11-30 00:13:10,440 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 58 transitions. cyclomatic complexity: 23. Second operand 6 states. Result 59 states and 79 transitions. Complement of second has 9 states. [2020-11-30 00:13:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-30 00:13:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:13:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 39 transitions. [2020-11-30 00:13:10,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 00:13:10,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:10,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:10,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:10,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-30 00:13:10,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:10,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 79 transitions. [2020-11-30 00:13:10,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:10,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 72 transitions. [2020-11-30 00:13:10,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-11-30 00:13:10,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-11-30 00:13:10,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 72 transitions. [2020-11-30 00:13:10,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:10,447 INFO L691 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2020-11-30 00:13:10,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 72 transitions. [2020-11-30 00:13:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2020-11-30 00:13:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-30 00:13:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2020-11-30 00:13:10,451 INFO L714 BuchiCegarLoop]: Abstraction has 51 states and 68 transitions. [2020-11-30 00:13:10,451 INFO L594 BuchiCegarLoop]: Abstraction has 51 states and 68 transitions. [2020-11-30 00:13:10,451 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-30 00:13:10,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 68 transitions. [2020-11-30 00:13:10,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:10,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:10,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:10,462 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:10,463 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:10,463 INFO L794 eck$LassoCheckResult]: Stem: 1198#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1197#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 1196#L50 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 1177#L27-1 assume !!(f_~k~0 <= 1073741823); 1178#L30-6 assume !(f_~z~0 < f_~k~0); 1206#L30-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1175#L18-3 assume !(0 == __VERIFIER_assert_~cond); 1176#L18-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1199#L34-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1200#L35-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1201#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1202#L38-3 assume 0 != f_~c~0 % 256; 1185#L39-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 1186#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1216#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1210#L38-5 [2020-11-30 00:13:10,463 INFO L796 eck$LassoCheckResult]: Loop: 1210#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1209#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1210#L38-5 [2020-11-30 00:13:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1803279767, now seen corresponding path program 1 times [2020-11-30 00:13:10,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:10,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128891337] [2020-11-30 00:13:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:10,513 INFO L82 PathProgramCache]: Analyzing trace with hash 5384, now seen corresponding path program 2 times [2020-11-30 00:13:10,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:10,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870132265] [2020-11-30 00:13:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:10,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2080040222, now seen corresponding path program 2 times [2020-11-30 00:13:10,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:10,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331029068] [2020-11-30 00:13:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:10,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:10,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:10,834 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 99 [2020-11-30 00:13:11,011 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2020-11-30 00:13:11,013 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:11,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:11,013 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:11,013 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:11,013 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:11,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:11,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:11,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration8_Lasso [2020-11-30 00:13:11,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:11,014 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:11,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,019 INFO 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 00:13:11,025 INFO 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 00:13:11,030 INFO 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 00:13:11,033 INFO 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 00:13:11,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,038 INFO 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 00:13:11,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,061 INFO 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 00:13:11,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,109 INFO 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 00:13:11,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:11,403 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:11,403 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:11,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:11,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:11,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:11,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:11,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:11,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:11,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:11,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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) [2020-11-30 00:13:11,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,538 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:11,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:11,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:11,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,629 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/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 00:13:11,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:11,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:11,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:11,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:11,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:11,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:11,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:11,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:11,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:11,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:11,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:11,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:11,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:11,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:11,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:11,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:11,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:11,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:12,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:12,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:12,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:12,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:12,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:12,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:12,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:12,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:12,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:12,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:12,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:12,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:12,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:12,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:12,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,236 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 00:13:12,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:12,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:12,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:12,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:12,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:12,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:12,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:12,255 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 00:13:12,255 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:12,259 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:12,259 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:12,259 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 00:13:12,289 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:12,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:12,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:12,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:12,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:12,384 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 00:13:12,384 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 00:13:12,384 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 68 transitions. cyclomatic complexity: 27 Second operand 4 states. [2020-11-30 00:13:12,417 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 68 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 69 states and 90 transitions. Complement of second has 6 states. [2020-11-30 00:13:12,418 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 00:13:12,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-11-30 00:13:12,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-30 00:13:12,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:12,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:12,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:12,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 15 letters. Loop has 4 letters. [2020-11-30 00:13:12,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:12,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 90 transitions. [2020-11-30 00:13:12,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:12,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 61 states and 80 transitions. [2020-11-30 00:13:12,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-11-30 00:13:12,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-11-30 00:13:12,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 80 transitions. [2020-11-30 00:13:12,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:12,421 INFO L691 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2020-11-30 00:13:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 80 transitions. [2020-11-30 00:13:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-11-30 00:13:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-30 00:13:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2020-11-30 00:13:12,424 INFO L714 BuchiCegarLoop]: Abstraction has 59 states and 78 transitions. [2020-11-30 00:13:12,424 INFO L594 BuchiCegarLoop]: Abstraction has 59 states and 78 transitions. [2020-11-30 00:13:12,424 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-30 00:13:12,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 78 transitions. [2020-11-30 00:13:12,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:13:12,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:12,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:12,425 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:12,425 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:12,425 INFO L794 eck$LassoCheckResult]: Stem: 1417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1416#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 1415#L50 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 1400#L27 assume !!(f_~k~0 <= 1073741823); 1401#L30-2 assume !(f_~z~0 < f_~k~0); 1402#L30-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1403#L18 assume !(0 == __VERIFIER_assert_~cond); 1398#L18-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1399#L34 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1426#L35 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1428#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1406#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1407#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1404#L38 assume 0 != f_~c~0 % 256; 1405#L39 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 1438#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1436#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1435#L38-2 [2020-11-30 00:13:12,425 INFO L796 eck$LassoCheckResult]: Loop: 1435#L38-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1434#L38 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1435#L38-2 [2020-11-30 00:13:12,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:12,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1435303097, now seen corresponding path program 3 times [2020-11-30 00:13:12,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:12,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739559607] [2020-11-30 00:13:12,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:12,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:12,457 INFO L82 PathProgramCache]: Analyzing trace with hash 3048, now seen corresponding path program 3 times [2020-11-30 00:13:12,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:12,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164796044] [2020-11-30 00:13:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,463 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:12,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:12,464 INFO L82 PathProgramCache]: Analyzing trace with hash -641772114, now seen corresponding path program 4 times [2020-11-30 00:13:12,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:12,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412879577] [2020-11-30 00:13:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:12,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:12,500 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:12,785 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108 [2020-11-30 00:13:12,951 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-11-30 00:13:12,953 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:12,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:12,953 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:12,953 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:12,953 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:12,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:12,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:12,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:12,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration9_Lasso [2020-11-30 00:13:12,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:12,954 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:12,955 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 00:13:12,967 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 00:13:12,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:12,988 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 00:13:12,990 INFO 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 00:13:12,993 INFO 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 00:13:12,999 INFO 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 00:13:13,043 INFO 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 00:13:13,045 INFO 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 00:13:13,048 INFO 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 00:13:13,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:13,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:13,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:13,055 INFO 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 00:13:13,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:13,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:13,341 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:13,342 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:13,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:13,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:13,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:13,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:13,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:13,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:13,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:13,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:13,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:13,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:13,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:13,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:13,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:13,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:13,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:13,384 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:13,392 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:13:13,392 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:13,395 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:13,397 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:13,397 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:13,397 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 00:13:13,425 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,476 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 00:13:13,477 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 00:13:13,477 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31 Second operand 4 states. [2020-11-30 00:13:13,505 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 67 states and 86 transitions. Complement of second has 6 states. [2020-11-30 00:13:13,505 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 00:13:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-11-30 00:13:13,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:13,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:13,506 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:13:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,581 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 00:13:13,582 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 00:13:13,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31 Second operand 4 states. [2020-11-30 00:13:13,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 67 states and 86 transitions. Complement of second has 6 states. [2020-11-30 00:13:13,609 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 00:13:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-11-30 00:13:13,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:13,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:13,610 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:13:13,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:13,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:13:13,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:13,668 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 00:13:13,669 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 00:13:13,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31 Second operand 4 states. [2020-11-30 00:13:13,715 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 78 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 70 states and 91 transitions. Complement of second has 5 states. [2020-11-30 00:13:13,720 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 00:13:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:13:13,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2020-11-30 00:13:13,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:13,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:13,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-30 00:13:13,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:13,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 17 letters. Loop has 4 letters. [2020-11-30 00:13:13,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:13,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 91 transitions. [2020-11-30 00:13:13,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:13:13,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 31 states and 40 transitions. [2020-11-30 00:13:13,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-30 00:13:13,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-30 00:13:13,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2020-11-30 00:13:13,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:13:13,723 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-30 00:13:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2020-11-30 00:13:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 00:13:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 00:13:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2020-11-30 00:13:13,725 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-30 00:13:13,725 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2020-11-30 00:13:13,725 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-30 00:13:13,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2020-11-30 00:13:13,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:13:13,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:13:13,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:13:13,726 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:13:13,726 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:13:13,726 INFO L794 eck$LassoCheckResult]: Stem: 1904#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1903#L-1 havoc main_#res;havoc main_#t~nondet8, main_~c~1;main_~c~1 := main_#t~nondet8;havoc main_#t~nondet8; 1902#L50 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet3, f_#t~nondet4, f_#t~nondet5, f_#t~nondet6, f_#t~nondet7, 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~nondet3;havoc f_#t~nondet3;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~k~0 := f_#t~nondet5;havoc f_#t~nondet5;f_~z~0 := 1; 1897#L27-1 assume !!(f_~k~0 <= 1073741823); 1898#L30-6 assume !(f_~z~0 < f_~k~0); 1912#L30-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1895#L18-3 assume !(0 == __VERIFIER_assert_~cond); 1896#L18-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1905#L34-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1906#L35-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1907#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1909#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1925#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1924#L38-3 assume 0 != f_~c~0 % 256; 1922#L39-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet7 % 256;havoc f_#t~nondet7;f_~z~0 := f_~z~0 - 1; 1921#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1920#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1919#L38-5 [2020-11-30 00:13:13,727 INFO L796 eck$LassoCheckResult]: Loop: 1919#L38-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet6;havoc f_#t~nondet6; 1918#L38-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1919#L38-5 [2020-11-30 00:13:13,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2104940624, now seen corresponding path program 3 times [2020-11-30 00:13:13,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:13,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419585910] [2020-11-30 00:13:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,749 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:13,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,750 INFO L82 PathProgramCache]: Analyzing trace with hash 5384, now seen corresponding path program 3 times [2020-11-30 00:13:13,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:13,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949790843] [2020-11-30 00:13:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash 81661175, now seen corresponding path program 4 times [2020-11-30 00:13:13,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:13:13,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510211521] [2020-11-30 00:13:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:13:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:13,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:13,796 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:13:14,218 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2020-11-30 00:13:14,360 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-11-30 00:13:14,362 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:13:14,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:13:14,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:13:14,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:13:14,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:13:14,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:13:14,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:13:14,363 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-2.i_Iteration10_Lasso [2020-11-30 00:13:14,363 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:13:14,363 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:13:14,365 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 00:13:14,389 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 00:13:14,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:14,396 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 00:13:14,398 INFO 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 00:13:14,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:14,432 INFO 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 00:13:14,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:14,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:14,460 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 00:13:14,474 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 00:13:14,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:13:14,478 INFO 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 00:13:14,480 INFO 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 00:13:14,482 INFO 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 00:13:14,512 INFO 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 00:13:14,776 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:13:14,776 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,778 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 00:13:14,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:14,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:14,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:13:14,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:14,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,896 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:14,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:14,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:14,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:14,994 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 00:13:14,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:14,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:14,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:14,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:14,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:14,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:14,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,045 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 00:13:15,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:13:15,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:15,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:15,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:15,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,151 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 00:13:15,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:15,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:15,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:15,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:13:15,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:13:15,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:13:15,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of 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 00:13:15,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:13:15,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:13:15,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:13:15,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:13:15,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:13:15,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:13:15,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:13:15,247 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:13:15,248 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d25bbbb8-293a-4954-b198-673594699214/bin/uautomizer/z3 Starting monitored process 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:13:15,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:13:15,251 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:13:15,252 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:13:15,252 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [499999*ULTIMATE.start_f_~d - 1*ULTIMATE.start_f_~x~0 >= 0] [2020-11-30 00:13:15,283 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-30 00:13:15,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,386 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,403 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 00:13:15,403 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-30 00:13:15,403 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15 Second operand 6 states. [2020-11-30 00:13:15,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 37 states and 47 transitions. Complement of second has 9 states. [2020-11-30 00:13:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-30 00:13:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:13:15,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-11-30 00:13:15,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:15,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:15,469 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:13:15,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,606 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,620 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 00:13:15,621 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-30 00:13:15,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15 Second operand 6 states. [2020-11-30 00:13:15,684 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 37 states and 47 transitions. Complement of second has 9 states. [2020-11-30 00:13:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-30 00:13:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:13:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-11-30 00:13:15,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:15,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:15,685 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:13:15,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:15,792 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:13:15,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:13:15,806 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 00:13:15,807 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-30 00:13:15,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15 Second operand 6 states. [2020-11-30 00:13:15,889 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 38 states and 49 transitions. Complement of second has 8 states. [2020-11-30 00:13:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-30 00:13:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:13:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 24 transitions. [2020-11-30 00:13:15,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-30 00:13:15,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:15,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-30 00:13:15,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:15,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 17 letters. Loop has 4 letters. [2020-11-30 00:13:15,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:13:15,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2020-11-30 00:13:15,891 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:13:15,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2020-11-30 00:13:15,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:13:15,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:13:15,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:13:15,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:13:15,891 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:13:15,891 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:13:15,891 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:13:15,892 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-30 00:13:15,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:13:15,892 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:13:15,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:13:15,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:13:15 BoogieIcfgContainer [2020-11-30 00:13:15,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:13:15,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:13:15,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:13:15,902 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:13:15,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:57" (3/4) ... [2020-11-30 00:13:15,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:13:15,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:13:15,906 INFO L168 Benchmark]: Toolchain (without parser) took 19252.62 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 54.3 MB in the beginning and 191.2 MB in the end (delta: -136.9 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:15,907 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:15,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.01 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 65.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:15,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.50 ms. Allocated memory is still 88.1 MB. Free memory was 65.3 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:15,908 INFO L168 Benchmark]: Boogie Preprocessor took 39.44 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:15,908 INFO L168 Benchmark]: RCFGBuilder took 490.89 ms. Allocated memory is still 88.1 MB. Free memory was 62.4 MB in the beginning and 46.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:15,909 INFO L168 Benchmark]: BuchiAutomizer took 18328.99 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 46.2 MB in the beginning and 191.2 MB in the end (delta: -145.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:13:15,909 INFO L168 Benchmark]: Witness Printer took 3.92 ms. Allocated memory is still 272.6 MB. Free memory is still 191.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:13:15,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.01 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 65.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.50 ms. Allocated memory is still 88.1 MB. Free memory was 65.3 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.44 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 490.89 ms. Allocated memory is still 88.1 MB. Free memory was 62.4 MB in the beginning and 46.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 18328.99 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 46.2 MB in the beginning and 191.2 MB in the end (delta: -145.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.92 ms. Allocated memory is still 272.6 MB. Free memory is still 191.2 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 10 terminating modules (0 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 k + -1 * z 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 and consists of 5 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 7 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 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.2s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 15.8s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 21 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 326 SDtfs, 511 SDslu, 160 SDs, 0 SdLazy, 200 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital129 mio100 ax100 hnf97 lsp47 ukn64 mio100 lsp79 div306 bol100 ite100 ukn100 eq142 hnf47 smp86 dnf100 smp100 tf101 neg98 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 3 VariablesLoop: 0 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...