./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 81a46fe8790e1f522cb67a9c253c8a7e6828f982 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:19:47,108 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:19:47,110 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:19:47,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:19:47,120 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:19:47,121 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:19:47,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:19:47,123 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:19:47,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:19:47,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:19:47,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:19:47,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:19:47,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:19:47,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:19:47,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:19:47,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:19:47,132 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:19:47,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:19:47,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:19:47,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:19:47,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:19:47,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:19:47,139 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:19:47,139 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:19:47,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:19:47,140 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:19:47,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:19:47,141 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:19:47,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:19:47,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:19:47,144 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:19:47,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:19:47,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:19:47,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:19:47,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:19:47,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:19:47,146 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 08:19:47,157 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:19:47,157 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:19:47,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:19:47,158 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:19:47,158 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:19:47,158 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 08:19:47,159 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 08:19:47,159 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 08:19:47,159 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 08:19:47,159 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 08:19:47,159 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 08:19:47,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:19:47,160 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 08:19:47,161 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:19:47,161 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 08:19:47,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:19:47,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:19:47,161 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 08:19:47,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:19:47,162 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:19:47,162 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 08:19:47,162 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 08:19:47,162 INFO L133 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/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 -> 81a46fe8790e1f522cb67a9c253c8a7e6828f982 [2018-11-23 08:19:47,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:19:47,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:19:47,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:19:47,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:19:47,197 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:19:47,197 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-23 08:19:47,235 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/data/c446c62ca/cb2e72284a1a4c62971748ecd995d1c9/FLAG718e2dbe7 [2018-11-23 08:19:47,625 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:19:47,625 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/sv-benchmarks/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-23 08:19:47,629 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/data/c446c62ca/cb2e72284a1a4c62971748ecd995d1c9/FLAG718e2dbe7 [2018-11-23 08:19:47,640 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/data/c446c62ca/cb2e72284a1a4c62971748ecd995d1c9 [2018-11-23 08:19:47,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:19:47,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:19:47,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:19:47,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:19:47,645 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:19:47,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ef1641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47, skipping insertion in model container [2018-11-23 08:19:47,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:19:47,664 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:19:47,765 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:19:47,768 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:19:47,777 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:19:47,787 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:19:47,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47 WrapperNode [2018-11-23 08:19:47,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:19:47,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:19:47,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:19:47,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:19:47,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:19:47,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:19:47,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:19:47,813 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:19:47,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... [2018-11-23 08:19:47,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:19:47,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:19:47,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:19:47,829 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:19:47,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:19:47,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:19:48,020 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:19:48,020 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 08:19:48,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:48 BoogieIcfgContainer [2018-11-23 08:19:48,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:19:48,021 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 08:19:48,021 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 08:19:48,024 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 08:19:48,024 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:19:48,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 08:19:47" (1/3) ... [2018-11-23 08:19:48,025 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5652eaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:19:48, skipping insertion in model container [2018-11-23 08:19:48,025 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:19:48,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:47" (2/3) ... [2018-11-23 08:19:48,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5652eaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:19:48, skipping insertion in model container [2018-11-23 08:19:48,026 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:19:48,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:48" (3/3) ... [2018-11-23 08:19:48,028 INFO L375 chiAutomizerObserver]: Analyzing ICFG LogAG_true-termination_true-no-overflow.c [2018-11-23 08:19:48,068 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:19:48,068 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 08:19:48,069 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 08:19:48,069 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 08:19:48,069 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:19:48,069 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:19:48,069 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 08:19:48,069 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:19:48,069 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 08:19:48,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 08:19:48,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:19:48,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:19:48,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:19:48,101 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:19:48,101 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:19:48,101 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 08:19:48,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 08:19:48,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:19:48,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:19:48,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:19:48,103 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:19:48,103 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:19:48,108 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2018-11-23 08:19:48,109 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2018-11-23 08:19:48,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:48,113 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 08:19:48,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:48,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:48,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:48,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:48,175 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-23 08:19:48,175 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:48,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:48,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:48,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:48,185 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-23 08:19:48,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:48,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:48,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:48,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:48,252 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:48,252 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:48,253 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:48,253 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:48,253 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:19:48,253 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:48,253 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:48,253 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:48,253 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:19:48,254 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:48,254 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:48,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,416 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:48,417 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:48,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:48,420 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:48,439 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:48,439 INFO L448 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/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:48,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:48,442 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:48,458 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:48,458 INFO L448 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/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:48,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:48,465 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:48,486 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:19:48,486 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:48,707 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:19:48,708 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:48,708 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:48,708 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:48,708 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:48,708 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:19:48,708 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:48,708 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:48,708 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:48,708 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:19:48,709 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:48,709 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:48,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:48,788 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:48,793 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:19:48,794 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:48,795 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:48,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:48,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:48,796 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:48,798 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:19:48,799 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:19:48,805 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:48,805 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:48,806 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:48,806 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:48,806 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:48,806 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:48,808 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:19:48,808 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:19:48,814 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:48,815 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:48,815 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:48,815 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:48,816 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:48,816 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:48,816 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:48,817 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:48,817 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:48,821 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:48,821 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:48,822 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:48,822 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:48,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:48,822 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:48,823 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:48,823 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:48,823 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:48,825 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:48,825 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:48,826 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:48,826 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:48,826 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:48,826 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:48,826 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:48,827 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:48,827 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:48,839 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:19:48,842 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:19:48,842 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 08:19:48,844 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:19:48,844 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:19:48,845 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:19:48,845 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 08:19:48,846 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:19:48,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:48,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:48,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:48,928 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 08:19:48,929 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-23 08:19:48,979 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-23 08:19:48,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 08:19:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 08:19:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-23 08:19:48,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-23 08:19:48,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:48,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 08:19:48,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:48,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-23 08:19:48,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:48,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-23 08:19:48,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:19:48,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-23 08:19:48,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-23 08:19:48,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 08:19:48,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-23 08:19:48,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 08:19:48,991 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 08:19:49,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-23 08:19:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-23 08:19:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 08:19:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-23 08:19:49,008 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-23 08:19:49,008 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-23 08:19:49,008 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 08:19:49,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-23 08:19:49,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:19:49,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:19:49,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:19:49,009 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 08:19:49,009 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:19:49,010 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 75#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 71#L17-2 [2018-11-23 08:19:49,010 INFO L796 eck$LassoCheckResult]: Loop: 71#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 71#L17-2 [2018-11-23 08:19:49,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 08:19:49,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:49,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-23 08:19:49,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:49,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-23 08:19:49,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:49,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,055 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:49,055 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:49,055 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:49,055 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:49,056 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:19:49,056 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,056 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:49,056 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:49,056 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 08:19:49,056 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:49,056 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:49,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,126 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:49,127 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,135 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,136 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,161 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:49,161 INFO L448 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/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,167 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,168 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:49,185 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,188 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,208 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:19:49,208 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,226 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:19:49,227 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:49,227 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:49,228 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:49,228 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:49,228 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:19:49,228 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,228 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:49,228 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:49,228 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 08:19:49,228 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:49,228 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:49,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,303 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:49,303 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:19:49,304 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:49,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:49,304 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:49,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:49,305 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:49,306 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:19:49,306 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:19:49,309 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:49,309 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:49,310 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:49,310 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:49,310 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:49,310 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:49,310 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:49,311 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:49,311 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:49,314 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:19:49,318 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:19:49,318 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 08:19:49,318 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:19:49,318 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:19:49,319 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:19:49,319 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-23 08:19:49,319 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:19:49,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:49,343 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 [2018-11-23 08:19:49,343 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-23 08:19:49,357 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-23 08:19:49,357 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 [2018-11-23 08:19:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:19:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:19:49,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-23 08:19:49,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 08:19:49,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 08:19:49,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-23 08:19:49,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:19:49,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-23 08:19:49,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-23 08:19:49,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-23 08:19:49,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-23 08:19:49,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 08:19:49,361 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 08:19:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-23 08:19:49,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-23 08:19:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 08:19:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-23 08:19:49,362 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 08:19:49,362 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 08:19:49,363 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 08:19:49,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-23 08:19:49,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:19:49,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:19:49,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:19:49,363 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-23 08:19:49,363 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:19:49,364 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 123#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 120#L17-2 assume !(main_~xtmp~0 > 1); 121#L17-3 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 124#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 119#L17-2 [2018-11-23 08:19:49,364 INFO L796 eck$LassoCheckResult]: Loop: 119#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 119#L17-2 [2018-11-23 08:19:49,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-23 08:19:49,364 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:19:49,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,372 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-23 08:19:49,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,373 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:19:49,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:19:49,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,376 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-11-23 08:19:49,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:19:49,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:19:49,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:19:49,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:19:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:49,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:19:49,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 08:19:49,419 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:49,419 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:49,419 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:49,419 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:49,420 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:19:49,420 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,420 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:49,420 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:49,420 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 08:19:49,420 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:49,420 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:49,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,466 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:49,467 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,469 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,469 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,486 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:19:49,486 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,496 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:49,496 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=0}, {ULTIMATE.start_main_~restmp~0=-1}, {ULTIMATE.start_main_~restmp~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,512 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,512 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,527 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:19:49,527 INFO L448 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/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/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 [2018-11-23 08:19:49,530 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:19:49,530 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8fe3c45-05b0-43d0-9764-ab09112066fc/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:19:49,547 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:19:49,563 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:19:49,565 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:19:49,565 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:19:49,565 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:19:49,565 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:19:49,566 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:19:49,566 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:19:49,566 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:19:49,566 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:19:49,566 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 08:19:49,566 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:19:49,566 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:19:49,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:19:49,616 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:19:49,616 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:19:49,617 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:49,620 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:49,620 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:49,620 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:49,620 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:49,620 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:49,621 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:49,621 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:49,624 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:19:49,624 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:19:49,625 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:19:49,625 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:19:49,625 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:19:49,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:19:49,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:19:49,626 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:19:49,626 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:19:49,630 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:19:49,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:19:49,633 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 08:19:49,633 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:19:49,633 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:19:49,633 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:19:49,634 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-23 08:19:49,634 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:19:49,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:49,656 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 [2018-11-23 08:19:49,656 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:19:49,663 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-23 08:19:49,663 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 [2018-11-23 08:19:49,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:19:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:19:49,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:19:49,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,664 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 08:19:49,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:49,692 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 [2018-11-23 08:19:49,692 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:19:49,697 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-23 08:19:49,697 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 [2018-11-23 08:19:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:19:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:19:49,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:19:49,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,698 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 08:19:49,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:19:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:19:49,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:19:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:19:49,719 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 [2018-11-23 08:19:49,719 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:19:49,731 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-11-23 08:19:49,732 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 [2018-11-23 08:19:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:19:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-23 08:19:49,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:19:49,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-23 08:19:49,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 08:19:49,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:19:49,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-11-23 08:19:49,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:19:49,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-23 08:19:49,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:19:49,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:19:49,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:19:49,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:19:49,734 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:19:49,734 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:19:49,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:19:49,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:19:49,737 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-23 08:19:49,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:19:49,739 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 08:19:49,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:19:49,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 08:19:49,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:19:49,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:19:49,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:19:49,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:19:49,740 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 08:19:49,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:19:49,740 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:19:49,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 08:19:49,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 08:19:49 BoogieIcfgContainer [2018-11-23 08:19:49,745 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 08:19:49,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:19:49,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:19:49,745 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:19:49,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:48" (3/4) ... [2018-11-23 08:19:49,748 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 08:19:49,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:19:49,749 INFO L168 Benchmark]: Toolchain (without parser) took 2106.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.8 MB in the beginning and 901.1 MB in the end (delta: 52.6 MB). Peak memory consumption was 199.9 MB. Max. memory is 11.5 GB. [2018-11-23 08:19:49,750 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:19:49,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:19:49,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:19:49,751 INFO L168 Benchmark]: Boogie Preprocessor took 16.10 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:19:49,751 INFO L168 Benchmark]: RCFGBuilder took 191.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:19:49,752 INFO L168 Benchmark]: BuchiAutomizer took 1723.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.1 MB in the end (delta: 229.5 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:19:49,752 INFO L168 Benchmark]: Witness Printer took 3.42 ms. Allocated memory is still 1.2 GB. Free memory is still 901.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:19:49,754 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.10 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 191.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1723.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 901.1 MB in the end (delta: 229.5 MB). Peak memory consumption was 229.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.42 ms. Allocated memory is still 1.2 GB. Free memory is still 901.1 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 23 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...