./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:13:53,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:13:53,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:13:53,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:13:53,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:13:53,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:13:53,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:13:53,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:13:53,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:13:53,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:13:53,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:13:53,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:13:53,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:13:53,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:13:53,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:13:53,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:13:53,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:13:53,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:13:53,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:13:53,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:13:53,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:13:53,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:13:53,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:13:53,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:13:53,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:13:53,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:13:53,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:13:53,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:13:53,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:13:53,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:13:53,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:13:53,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:13:53,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:13:53,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:13:53,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:13:53,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:13:53,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:13:53,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:13:53,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:13:53,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:13:53,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:13:53,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 02:13:53,426 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:13:53,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:13:53,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:13:53,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:13:53,428 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:13:53,428 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:13:53,428 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:13:53,429 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:13:53,429 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:13:53,429 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:13:53,429 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:13:53,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:13:53,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:13:53,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:13:53,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:13:53,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:13:53,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:13:53,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:13:53,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:13:53,432 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:13:53,432 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:13:53,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:13:53,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:13:53,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:13:53,433 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:13:53,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:13:53,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:13:53,434 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:13:53,435 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:13:53,435 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2019-11-20 02:13:53,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:13:53,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:13:53,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:13:53,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:13:53,619 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:13:53,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-20 02:13:53,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/data/935fadae8/939764dcf7b3487480eb42c7debbadfc/FLAG95fe0df22 [2019-11-20 02:13:54,172 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:13:54,173 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-20 02:13:54,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/data/935fadae8/939764dcf7b3487480eb42c7debbadfc/FLAG95fe0df22 [2019-11-20 02:13:54,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/data/935fadae8/939764dcf7b3487480eb42c7debbadfc [2019-11-20 02:13:54,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:13:54,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:13:54,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:13:54,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:13:54,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:13:54,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70af185b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54, skipping insertion in model container [2019-11-20 02:13:54,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:13:54,553 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:13:54,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:13:54,715 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:13:54,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:13:54,812 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:13:54,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54 WrapperNode [2019-11-20 02:13:54,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:13:54,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:13:54,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:13:54,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:13:54,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:13:54,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:13:54,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:13:54,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:13:54,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... [2019-11-20 02:13:54,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:13:54,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:13:54,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:13:54,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:13:54,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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 [2019-11-20 02:13:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:13:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:13:55,130 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:13:55,131 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 02:13:55,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:13:55 BoogieIcfgContainer [2019-11-20 02:13:55,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:13:55,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:13:55,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:13:55,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:13:55,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:13:55,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:13:54" (1/3) ... [2019-11-20 02:13:55,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ea3e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:13:55, skipping insertion in model container [2019-11-20 02:13:55,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:13:55,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:54" (2/3) ... [2019-11-20 02:13:55,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ea3e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:13:55, skipping insertion in model container [2019-11-20 02:13:55,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:13:55,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:13:55" (3/3) ... [2019-11-20 02:13:55,143 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2019-11-20 02:13:55,202 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:13:55,202 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:13:55,203 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:13:55,203 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:13:55,203 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:13:55,203 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:13:55,204 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:13:55,204 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:13:55,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 02:13:55,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:55,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:13:55,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:13:55,250 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 02:13:55,251 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:13:55,251 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:13:55,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 02:13:55,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:55,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:13:55,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:13:55,253 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 02:13:55,253 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:13:55,262 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2019-11-20 02:13:55,262 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2019-11-20 02:13:55,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:55,270 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 02:13:55,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:55,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753281241] [2019-11-20 02:13:55,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,395 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-20 02:13:55,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:55,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394166198] [2019-11-20 02:13:55,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,410 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:55,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:55,412 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-20 02:13:55,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:55,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919293274] [2019-11-20 02:13:55,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:55,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:55,582 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:55,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:55,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:55,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:55,584 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:13:55,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:55,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:55,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-20 02:13:55,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:55,586 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:55,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,723 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:55,724 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:55,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:55,735 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:13:55,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:55,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:13:55,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:13:55,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:55,784 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:13:55,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:13:55,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:13:55,831 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:55,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:55,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:55,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:55,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:13:55,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:55,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:55,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-20 02:13:55,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:55,832 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:55,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:55,950 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:55,956 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:55,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:56,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:56,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:56,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:56,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:56,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:56,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:13:56,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:56,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:56,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:56,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:56,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:56,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:56,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:13:56,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:13:56,064 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,074 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:13:56,074 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:13:56,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:13:56,089 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:13:56,090 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,100 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:13:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,140 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:13:56,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,152 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:13:56,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:56,174 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:13:56,175 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-20 02:13:56,233 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-11-20 02:13:56,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:13:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:13:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-20 02:13:56,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 02:13:56,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 02:13:56,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 02:13:56,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-20 02:13:56,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:56,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-20 02:13:56,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 02:13:56,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 02:13:56,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-20 02:13:56,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:13:56,258 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 02:13:56,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-20 02:13:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 02:13:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 02:13:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 02:13:56,286 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 02:13:56,287 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 02:13:56,287 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:13:56,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 02:13:56,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:56,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:13:56,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:13:56,288 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 02:13:56,288 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:13:56,289 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2019-11-20 02:13:56,289 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2019-11-20 02:13:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,289 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-20 02:13:56,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:56,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548458041] [2019-11-20 02:13:56,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:56,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548458041] [2019-11-20 02:13:56,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:13:56,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 02:13:56,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338227533] [2019-11-20 02:13:56,331 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 02:13:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-20 02:13:56,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:56,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401063496] [2019-11-20 02:13:56,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:56,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:56,365 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:56,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:56,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:56,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:56,366 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:13:56,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:56,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:56,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-20 02:13:56,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:56,367 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:56,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,455 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:56,455 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:56,465 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:13:56,474 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:56,480 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:13:56,497 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,519 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:13:56,521 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:56,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:56,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:56,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:56,521 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:13:56,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:56,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:56,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-20 02:13:56,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:56,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:56,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,652 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:56,652 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:56,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:56,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:56,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:56,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:56,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:56,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:13:56,667 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 [2019-11-20 02:13:56,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:13:56,676 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:13:56,676 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,689 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:13:56,690 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:13:56,690 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:13:56,690 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,693 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:13:56,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:13:56,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,724 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:13:56,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:56,725 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:13:56,725 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 02:13:56,737 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-11-20 02:13:56,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:13:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:13:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 02:13:56,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 02:13:56,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 02:13:56,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-20 02:13:56,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:56,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-20 02:13:56,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:56,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 02:13:56,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-20 02:13:56,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 02:13:56,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-20 02:13:56,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:13:56,743 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 02:13:56,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-20 02:13:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 02:13:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 02:13:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 02:13:56,745 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 02:13:56,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:13:56,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:13:56,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:13:56,749 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2019-11-20 02:13:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:13:56,760 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-11-20 02:13:56,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:13:56,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2019-11-20 02:13:56,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:56,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2019-11-20 02:13:56,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-20 02:13:56,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 02:13:56,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-20 02:13:56,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:13:56,763 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 02:13:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-20 02:13:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-20 02:13:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 02:13:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-11-20 02:13:56,765 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-20 02:13:56,765 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-20 02:13:56,765 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:13:56,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-11-20 02:13:56,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:13:56,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:13:56,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:13:56,767 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2019-11-20 02:13:56,767 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:13:56,767 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2019-11-20 02:13:56,767 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2019-11-20 02:13:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2019-11-20 02:13:56,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:56,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594211085] [2019-11-20 02:13:56,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 02:13:56,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594211085] [2019-11-20 02:13:56,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:13:56,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 02:13:56,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230029606] [2019-11-20 02:13:56,788 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 02:13:56,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:56,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-20 02:13:56,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:56,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265679665] [2019-11-20 02:13:56,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:56,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:56,823 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:56,823 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:56,823 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:56,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:56,824 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:13:56,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:56,824 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:56,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-20 02:13:56,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:56,825 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:56,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:56,908 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:56,909 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:56,931 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:56,937 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:13:56,937 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:56,953 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:56,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:13:56,980 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,008 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:13:57,011 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:57,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:57,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:57,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:57,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:13:57,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:57,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:57,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-20 02:13:57,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:57,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:57,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,087 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:57,087 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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 [2019-11-20 02:13:57,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:57,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:13:57,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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 [2019-11-20 02:13:57,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:57,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:13:57,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:13:57,127 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:13:57,130 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:13:57,130 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:13:57,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:13:57,141 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:13:57,141 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-20 02:13:57,143 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:13:57,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,181 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:57,182 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:13:57,183 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 02:13:57,197 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-20 02:13:57,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:13:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:13:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 02:13:57,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:13:57,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:57,199 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:13:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,233 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:57,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:13:57,234 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 02:13:57,248 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-20 02:13:57,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:13:57,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:13:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 02:13:57,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:13:57,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:57,249 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:13:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:57,283 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:13:57,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:57,284 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 02:13:57,285 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 02:13:57,298 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2019-11-20 02:13:57,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:13:57,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:13:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 02:13:57,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:13:57,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:57,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-20 02:13:57,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:57,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-20 02:13:57,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:13:57,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2019-11-20 02:13:57,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:13:57,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2019-11-20 02:13:57,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 02:13:57,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 02:13:57,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-20 02:13:57,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:13:57,304 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-20 02:13:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-20 02:13:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2019-11-20 02:13:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 02:13:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-20 02:13:57,306 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-20 02:13:57,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:13:57,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 02:13:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 02:13:57,307 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2019-11-20 02:13:57,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:13:57,328 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-20 02:13:57,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 02:13:57,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-20 02:13:57,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 02:13:57,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2019-11-20 02:13:57,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 02:13:57,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-20 02:13:57,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-11-20 02:13:57,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:13:57,331 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-11-20 02:13:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-11-20 02:13:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2019-11-20 02:13:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 02:13:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-11-20 02:13:57,333 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-20 02:13:57,333 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-20 02:13:57,333 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 02:13:57,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-11-20 02:13:57,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 02:13:57,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:13:57,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:13:57,334 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 02:13:57,334 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-20 02:13:57,334 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2019-11-20 02:13:57,335 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-20 02:13:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,335 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-20 02:13:57,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:57,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788165278] [2019-11-20 02:13:57,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,350 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2019-11-20 02:13:57,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:57,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73533761] [2019-11-20 02:13:57,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,372 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:57,373 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2019-11-20 02:13:57,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:57,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152604487] [2019-11-20 02:13:57,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:57,388 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:57,426 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:57,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:57,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:57,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:57,427 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:13:57,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:57,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:57,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-20 02:13:57,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:57,428 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:57,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,525 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:57,525 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:13:57,538 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:13:57,557 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,570 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:13:57,573 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:13:57,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:13:57,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:13:57,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:13:57,574 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:13:57,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:13:57,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:13:57,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-20 02:13:57,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:13:57,574 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:13:57,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:13:57,660 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:13:57,661 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:57,694 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 [2019-11-20 02:13:57,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:57,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,754 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 [2019-11-20 02:13:57,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:57,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:13:57,758 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 [2019-11-20 02:13:57,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:13:57,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:57,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:57,785 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,798 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:57,805 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:57,805 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,829 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:57,834 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:57,835 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:57,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,853 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:57,855 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-20 02:13:57,856 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 [2019-11-20 02:13:57,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,869 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:57,876 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:57,876 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:57,890 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,932 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:57,952 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:57,952 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 02:13:57,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:57,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:57,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:57,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:57,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:57,986 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:57,990 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:57,992 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,011 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,012 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 02:13:58,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,028 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,034 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,034 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,043 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,056 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 02:13:58,071 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,071 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,088 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,098 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,106 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,106 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-11-20 02:13:58,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,135 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,136 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-20 02:13:58,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:13:58,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:13:58,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,150 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 02:13:58,155 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,156 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,166 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,174 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,174 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,175 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:58,180 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:58,181 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,203 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,203 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,204 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:58,207 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:58,208 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,233 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,233 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,234 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:58,235 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-20 02:13:58,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,248 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,248 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,248 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:13:58,252 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:13:58,252 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,259 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,261 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,272 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,272 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-20 02:13:58,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,273 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,279 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,280 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,307 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,308 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-20 02:13:58,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,308 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,313 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,313 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,334 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,334 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-20 02:13:58,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,335 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,336 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 02:13:58,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,350 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,350 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-20 02:13:58,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,350 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,355 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,355 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 02:13:58,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,366 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,374 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,374 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,375 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 02:13:58,384 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,384 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,421 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,421 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,421 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,428 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,428 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-11-20 02:13:58,444 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,453 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,453 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,454 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 02:13:58,457 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-20 02:13:58,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,472 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,473 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,473 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 02:13:58,479 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 02:13:58,480 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,498 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,506 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 [2019-11-20 02:13:58,508 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,508 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,509 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,514 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,515 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,538 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 [2019-11-20 02:13:58,540 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,540 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,541 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,545 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,545 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,563 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,564 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,564 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,565 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 02:13:58,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:13:58,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,578 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 [2019-11-20 02:13:58,580 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,580 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-20 02:13:58,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,580 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 02:13:58,585 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 02:13:58,585 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,595 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,603 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,603 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,604 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-20 02:13:58,613 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-20 02:13:58,613 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,647 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,648 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,648 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-20 02:13:58,654 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-20 02:13:58,654 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,680 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,680 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:13:58,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,681 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-20 02:13:58,682 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:13:58,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/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) [2019-11-20 02:13:58,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:13:58,696 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-20 02:13:58,696 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-20 02:13:58,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:13:58,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:13:58,697 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-20 02:13:58,702 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-20 02:13:58,703 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:13:58,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:13:58,715 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-11-20 02:13:58,716 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-20 02:13:58,716 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-20 02:13:58,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:58,717 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2019-11-20 02:13:58,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:58,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884893433] [2019-11-20 02:13:58,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,726 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:58,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2019-11-20 02:13:58,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:58,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019763838] [2019-11-20 02:13:58,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,745 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2019-11-20 02:13:58,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:13:58,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313917960] [2019-11-20 02:13:58,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:13:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:13:58,771 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:13:58,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:13:58 BoogieIcfgContainer [2019-11-20 02:13:58,863 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:13:58,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:13:58,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:13:58,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:13:58,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:13:55" (3/4) ... [2019-11-20 02:13:58,868 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 02:13:58,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0eaac82a-ad83-48a6-82b3-e80828a1b749/bin/uautomizer/witness.graphml [2019-11-20 02:13:58,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:13:58,910 INFO L168 Benchmark]: Toolchain (without parser) took 4390.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 951.5 MB in the beginning and 1.0 GB in the end (delta: -60.7 MB). Peak memory consumption was 155.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,911 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:13:58,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,912 INFO L168 Benchmark]: Boogie Preprocessor took 21.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:13:58,913 INFO L168 Benchmark]: RCFGBuilder took 253.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,913 INFO L168 Benchmark]: BuchiAutomizer took 3729.99 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.3 MB). Peak memory consumption was 177.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,914 INFO L168 Benchmark]: Witness Printer took 44.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2019-11-20 02:13:58,917 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 253.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3729.99 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.3 MB). Peak memory consumption was 177.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 70ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...