./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.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_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 208a8efcd2fd6b8ea52a20177afd9722587411ce ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:10:47,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:10:47,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:10:47,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:10:47,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:10:47,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:10:47,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:10:47,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:10:47,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:10:47,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:10:47,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:10:47,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:10:47,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:10:47,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:10:47,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:10:47,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:10:47,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:10:47,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:10:47,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:10:47,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:10:47,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:10:47,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:10:47,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:10:47,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:10:47,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:10:47,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:10:47,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:10:47,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:10:47,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:10:47,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:10:47,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:10:47,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:10:47,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:10:47,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:10:47,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:10:47,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:10:47,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:10:47,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:10:47,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:10:47,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:10:47,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:10:47,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 11:10:47,480 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:10:47,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:10:47,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:10:47,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:10:47,485 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:10:47,485 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:10:47,485 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:10:47,485 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:10:47,485 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:10:47,486 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:10:47,487 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:10:47,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:10:47,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:10:47,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:10:47,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:10:47,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:10:47,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:10:47,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:10:47,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:10:47,489 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:10:47,489 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:10:47,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:10:47,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:10:47,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:10:47,490 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:10:47,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:10:47,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:10:47,490 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:10:47,491 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:10:47,491 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_01aa3aab-0e05-4566-b1e0-6642e320f938/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 -> 208a8efcd2fd6b8ea52a20177afd9722587411ce [2019-11-20 11:10:47,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:10:47,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:10:47,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:10:47,667 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:10:47,667 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:10:47,668 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2019-11-20 11:10:47,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/data/c5afd6ba5/64ba9ad42478439992c7edc0fd69feef/FLAG3b597da30 [2019-11-20 11:10:48,081 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:10:48,081 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2019-11-20 11:10:48,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/data/c5afd6ba5/64ba9ad42478439992c7edc0fd69feef/FLAG3b597da30 [2019-11-20 11:10:48,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/data/c5afd6ba5/64ba9ad42478439992c7edc0fd69feef [2019-11-20 11:10:48,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:10:48,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:10:48,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:10:48,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:10:48,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:10:48,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296df8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48, skipping insertion in model container [2019-11-20 11:10:48,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,528 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:10:48,541 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:10:48,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:10:48,674 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:10:48,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:10:48,759 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:10:48,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48 WrapperNode [2019-11-20 11:10:48,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:10:48,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:10:48,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:10:48,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:10:48,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:10:48,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:10:48,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:10:48,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:10:48,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... [2019-11-20 11:10:48,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:10:48,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:10:48,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:10:48,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:10:48,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 11:10:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:10:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:10:49,059 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:10:49,060 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 11:10:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49 BoogieIcfgContainer [2019-11-20 11:10:49,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:10:49,061 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:10:49,061 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:10:49,065 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:10:49,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:10:49,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:10:48" (1/3) ... [2019-11-20 11:10:49,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@574d47b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:10:49, skipping insertion in model container [2019-11-20 11:10:49,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:10:49,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:48" (2/3) ... [2019-11-20 11:10:49,068 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@574d47b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:10:49, skipping insertion in model container [2019-11-20 11:10:49,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:10:49,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49" (3/3) ... [2019-11-20 11:10:49,070 INFO L371 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2019-11-20 11:10:49,128 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:10:49,128 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:10:49,129 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:10:49,129 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:10:49,129 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:10:49,129 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:10:49,129 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:10:49,129 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:10:49,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-20 11:10:49,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 11:10:49,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:10:49,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:10:49,183 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 11:10:49,183 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 11:10:49,183 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:10:49,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-20 11:10:49,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-20 11:10:49,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:10:49,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:10:49,197 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 11:10:49,197 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-20 11:10:49,204 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~a~0, main_~b~0, main_~q~0, main_~olda~0;havoc main_~a~0;havoc main_~b~0;havoc main_~q~0;havoc main_~olda~0;main_~q~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23true assume !!(-524287 <= main_~q~0 && main_~q~0 <= 524287); 8#L24true assume !!(-524287 <= main_~a~0 && main_~a~0 <= 524287); 11#L25true assume !!(-524287 <= main_~b~0 && main_~b~0 <= 524287); 9#L26-2true [2019-11-20 11:10:49,205 INFO L796 eck$LassoCheckResult]: Loop: 9#L26-2true assume !!(main_~q~0 > 0);main_~q~0 := main_~q~0 + main_~a~0 - 1;main_~olda~0 := main_~a~0;main_~a~0 := 3 * main_~olda~0 - 4 * main_~b~0;main_~b~0 := 4 * main_~olda~0 + 3 * main_~b~0; 9#L26-2true [2019-11-20 11:10:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:10:49,211 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2019-11-20 11:10:49,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:10:49,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708379798] [2019-11-20 11:10:49,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:10:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:10:49,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:10:49,336 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2019-11-20 11:10:49,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:10:49,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820880878] [2019-11-20 11:10:49,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:10:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,364 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:10:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:10:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2019-11-20 11:10:49,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:10:49,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143504161] [2019-11-20 11:10:49,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:10:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:10:49,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:10:49,495 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:10:49,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:10:49,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:10:49,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:10:49,497 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 11:10:49,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:10:49,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:10:49,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:10:49,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2019-11-20 11:10:49,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:10:49,498 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:10:49,517 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 11:10:49,525 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 11:10:49,533 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 11:10:49,675 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:10:49,675 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:10:49,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:10:49,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 11:10:49,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:10:49,718 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_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:10:49,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:10:49,738 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:10:49,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 11:10:49,753 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_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:10:49,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 11:10:49,766 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:10:49,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 11:10:49,806 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:01,851 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-20 11:11:01,853 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:11:01,853 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:11:01,853 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:11:01,853 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:11:01,854 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:11:01,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:01,854 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:11:01,854 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:11:01,854 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2019-11-20 11:11:01,854 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:11:01,854 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:11:01,856 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 11:11:01,860 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 11:11:01,863 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 11:11:02,012 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:11:02,017 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:11:02,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:11:02,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:11:02,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:11:02,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:11:02,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:11:02,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 11:11:02,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:11:02,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:11:02,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:11:02,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 11:11:02,112 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,119 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 11:11:02,124 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 11:11:02,124 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-20 11:11:02,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 11:11:02,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,148 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 11:11:02,157 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 11:11:02,157 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-20 11:11:02,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:11:02,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,182 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 11:11:02,188 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-20 11:11:02,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:11:02,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 11:11:02,204 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,215 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 11:11:02,222 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 11:11:02,222 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 11:11:02,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,242 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 11:11:02,255 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-20 11:11:02,255 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 11:11:02,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 11:11:02,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:11:02,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,286 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-20 11:11:02,295 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 11:11:02,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 11:11:02,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,307 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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 11:11:02,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,327 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 11:11:02,338 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 11:11:02,338 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:11:02,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,360 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 11:11:02,366 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-20 11:11:02,366 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-11-20 11:11:02,377 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:11:02,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11:11:02,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:11:02,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:11:02,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:11:02,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:11:02,402 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-20 11:11:02,412 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-20 11:11:02,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,425 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:11:02,470 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 11:11:02,470 INFO L444 ModelExtractionUtils]: 9 out of 21 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01aa3aab-0e05-4566-b1e0-6642e320f938/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) [2019-11-20 11:11:02,488 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:11:02,489 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 11:11:02,489 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:11:02,490 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 4-nested ranking function: f0 = -20*ULTIMATE.start_main_~b~0 + 100*ULTIMATE.start_main_~q~0 - 10*ULTIMATE.start_main_~a~0 f1 = -4*ULTIMATE.start_main_~b~0 + 3*ULTIMATE.start_main_~a~0 f2 = 1*ULTIMATE.start_main_~q~0 + 1*ULTIMATE.start_main_~a~0 f3 = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2019-11-20 11:11:02,495 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:11:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:11:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:11:02,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:11:02,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:11:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:11:02,577 WARN L253 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 11:11:02,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:11:02,579 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 11:11:02,594 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 11:11:02,595 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2019-11-20 11:11:02,646 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-11-20 11:11:02,647 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 11:11:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-20 11:11:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-20 11:11:02,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-20 11:11:02,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:11:02,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-20 11:11:02,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:11:02,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 11:11:02,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:11:02,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-11-20 11:11:02,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:11:02,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-11-20 11:11:02,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:11:02,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:11:02,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:11:02,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:11:02,668 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:11:02,668 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:11:02,668 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:11:02,669 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:11:02,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:11:02,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:11:02,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 11:11:02,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:11:02 BoogieIcfgContainer [2019-11-20 11:11:02,679 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:11:02,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:11:02,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:11:02,680 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:11:02,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49" (3/4) ... [2019-11-20 11:11:02,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:11:02,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:11:02,687 INFO L168 Benchmark]: Toolchain (without parser) took 14174.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 961.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:11:02,688 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:11:02,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:11:02,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.54 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 11:11:02,700 INFO L168 Benchmark]: Boogie Preprocessor took 16.98 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:11:02,701 INFO L168 Benchmark]: RCFGBuilder took 255.10 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:11:02,702 INFO L168 Benchmark]: BuchiAutomizer took 13617.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.8 MB in the end (delta: 159.9 MB). Peak memory consumption was 159.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:11:02,703 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 1.2 GB. Free memory is still 961.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:11:02,707 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.54 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. * Boogie Preprocessor took 16.98 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 255.10 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13617.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.8 MB in the end (delta: 159.9 MB). Peak memory consumption was 159.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.84 ms. Allocated memory is still 1.2 GB. Free memory is still 961.8 MB. There was no memory consumed. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 4-nested ranking function (if -20 * b + 100 * q + -10 * a > 0 then 3 else (if -4 * b + 3 * a > 0 then 2 else (if q + a > 0 then 1 else 0))), (if -20 * b + 100 * q + -10 * a > 0 then -20 * b + 100 * q + -10 * a else (if -4 * b + 3 * a > 0 then -4 * b + 3 * a else (if q + a > 0 then q + a else q))) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf102 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf93 smp100 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 5 MotzkinApplications: 15 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...