./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB17_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB17_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 b15653f6a2dde479fee065502d45075dfcaf4f25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:08:08,026 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:08:08,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:08:08,037 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:08:08,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:08:08,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:08:08,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:08:08,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:08:08,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:08:08,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:08:08,043 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:08:08,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:08:08,044 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:08:08,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:08:08,046 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:08:08,047 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:08:08,048 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:08:08,049 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:08:08,051 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:08:08,052 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:08:08,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:08:08,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:08:08,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:08:08,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:08:08,056 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:08:08,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:08:08,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:08:08,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:08:08,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:08:08,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:08:08,061 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:08:08,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:08:08,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:08:08,062 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:08:08,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:08:08,063 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:08:08,063 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-09 23:08:08,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:08:08,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:08:08,075 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:08:08,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:08:08,075 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:08:08,075 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-09 23:08:08,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:08:08,076 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-09 23:08:08,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:08:08,078 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-09 23:08:08,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-09 23:08:08,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:08:08,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:08:08,078 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-09 23:08:08,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:08:08,079 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 23:08:08,079 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-09 23:08:08,080 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-09 23:08:08,080 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_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 -> b15653f6a2dde479fee065502d45075dfcaf4f25 [2018-11-09 23:08:08,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:08:08,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:08:08,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:08:08,126 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:08:08,126 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:08:08,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB17_true-termination_true-no-overflow.c [2018-11-09 23:08:08,183 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/data/40e2b2eff/567137f96fd24aeab31471a4411bd5a5/FLAG6d50b0083 [2018-11-09 23:08:08,550 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:08:08,550 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/sv-benchmarks/c/termination-restricted-15/PastaB17_true-termination_true-no-overflow.c [2018-11-09 23:08:08,555 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/data/40e2b2eff/567137f96fd24aeab31471a4411bd5a5/FLAG6d50b0083 [2018-11-09 23:08:08,570 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/bin-2019/uautomizer/data/40e2b2eff/567137f96fd24aeab31471a4411bd5a5 [2018-11-09 23:08:08,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:08:08,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:08:08,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:08:08,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:08:08,580 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:08:08,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133164ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08, skipping insertion in model container [2018-11-09 23:08:08,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:08:08,611 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:08:08,755 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:08:08,759 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:08:08,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:08:08,786 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:08:08,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08 WrapperNode [2018-11-09 23:08:08,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:08:08,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:08:08,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:08:08,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:08:08,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:08:08,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:08:08,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:08:08,820 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:08:08,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... [2018-11-09 23:08:08,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:08:08,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:08:08,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:08:08,837 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:08:08,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:08:08,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:08:09,036 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:08:09,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:08:09 BoogieIcfgContainer [2018-11-09 23:08:09,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:08:09,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-09 23:08:09,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-09 23:08:09,042 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-09 23:08:09,043 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:08:09,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 11:08:08" (1/3) ... [2018-11-09 23:08:09,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@196f6b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:08:09, skipping insertion in model container [2018-11-09 23:08:09,044 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:08:09,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:08:08" (2/3) ... [2018-11-09 23:08:09,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@196f6b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:08:09, skipping insertion in model container [2018-11-09 23:08:09,045 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:08:09,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:08:09" (3/3) ... [2018-11-09 23:08:09,047 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB17_true-termination_true-no-overflow.c [2018-11-09 23:08:09,103 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:08:09,104 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-09 23:08:09,104 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-09 23:08:09,104 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-09 23:08:09,104 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:08:09,104 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:08:09,105 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-09 23:08:09,105 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:08:09,105 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-09 23:08:09,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-09 23:08:09,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-09 23:08:09,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:08:09,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:08:09,147 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 23:08:09,147 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-09 23:08:09,147 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-09 23:08:09,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-09 23:08:09,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-09 23:08:09,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:08:09,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:08:09,149 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 23:08:09,149 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-09 23:08:09,157 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L13-3true [2018-11-09 23:08:09,158 INFO L795 eck$LassoCheckResult]: Loop: 4#L13-3true assume true; 8#L13-1true assume !!(main_~x~0 > main_~z~0); 7#L14-3true assume !true; 5#L14-4true main_~x~0 := main_~x~0 - 1; 4#L13-3true [2018-11-09 23:08:09,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:09,164 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-09 23:08:09,165 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:09,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:09,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:09,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-09 23:08:09,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:09,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:09,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:09,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:08:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:08:09,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:08:09,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 23:08:09,281 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-09 23:08:09,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 23:08:09,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 23:08:09,294 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-09 23:08:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:08:09,299 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-09 23:08:09,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 23:08:09,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-09 23:08:09,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-09 23:08:09,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-09 23:08:09,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-09 23:08:09,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-09 23:08:09,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-09 23:08:09,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-09 23:08:09,307 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-09 23:08:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-09 23:08:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-09 23:08:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-09 23:08:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-09 23:08:09,331 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-09 23:08:09,331 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-09 23:08:09,331 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-09 23:08:09,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-09 23:08:09,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-09 23:08:09,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:08:09,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:08:09,332 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-09 23:08:09,332 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-09 23:08:09,333 INFO L793 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 31#L13-3 [2018-11-09 23:08:09,333 INFO L795 eck$LassoCheckResult]: Loop: 31#L13-3 assume true; 32#L13-1 assume !!(main_~x~0 > main_~z~0); 35#L14-3 assume true; 36#L14-1 assume !(main_~y~0 > main_~z~0); 33#L14-4 main_~x~0 := main_~x~0 - 1; 31#L13-3 [2018-11-09 23:08:09,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:09,333 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-09 23:08:09,333 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:09,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:09,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:09,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:09,339 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-09 23:08:09,339 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:09,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:09,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,341 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-09 23:08:09,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:09,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-09 23:08:09,350 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:09,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:09,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:09,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:09,427 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:08:09,428 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:08:09,428 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:08:09,428 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:08:09,428 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:08:09,428 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:08:09,429 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:08:09,429 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:08:09,429 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB17_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-09 23:08:09,429 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:08:09,429 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:08:09,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:09,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:09,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:09,535 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:08:09,536 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:09,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:09,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:09,564 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:08:09,565 INFO L446 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_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:09,568 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:09,568 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:09,588 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:08:09,589 INFO L446 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_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:09,592 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:09,593 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:09,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:08:09,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:10,031 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 23:08:10,033 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:08:10,033 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:08:10,033 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:08:10,033 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:08:10,033 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 23:08:10,033 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:08:10,033 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:08:10,033 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:08:10,033 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB17_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-09 23:08:10,033 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:08:10,033 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:08:10,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,100 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:08:10,104 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 23:08:10,106 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 [2018-11-09 23:08:10,107 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,107 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,107 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,111 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-09 23:08:10,111 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-09 23:08:10,118 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:08:10,119 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 [2018-11-09 23:08:10,119 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,120 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,120 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,120 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,121 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-09 23:08:10,122 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-09 23:08:10,128 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:08:10,129 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 [2018-11-09 23:08:10,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,129 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:08:10,130 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,130 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,130 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,131 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:08:10,131 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:08:10,136 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 23:08:10,142 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-09 23:08:10,143 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 23:08:10,144 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 23:08:10,145 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 23:08:10,145 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 23:08:10,145 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-09 23:08:10,146 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 23:08:10,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:08:10,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:08:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:08:10,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:08:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:08:10,213 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 [2018-11-09 23:08:10,214 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-09 23:08:10,253 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-11-09 23:08:10,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-09 23:08:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 23:08:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-09 23:08:10,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-09 23:08:10,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-09 23:08:10,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-09 23:08:10,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-11-09 23:08:10,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:08:10,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-11-09 23:08:10,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-09 23:08:10,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-09 23:08:10,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-09 23:08:10,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-09 23:08:10,260 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-09 23:08:10,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-09 23:08:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-09 23:08:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-09 23:08:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-09 23:08:10,261 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-09 23:08:10,262 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-09 23:08:10,262 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-09 23:08:10,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-09 23:08:10,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:08:10,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:08:10,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:08:10,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-09 23:08:10,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-09 23:08:10,263 INFO L793 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 94#L13-3 assume true; 97#L13-1 assume !!(main_~x~0 > main_~z~0); 100#L14-3 [2018-11-09 23:08:10,263 INFO L795 eck$LassoCheckResult]: Loop: 100#L14-3 assume true; 101#L14-1 assume !!(main_~y~0 > main_~z~0);main_~y~0 := main_~y~0 - 1; 100#L14-3 [2018-11-09 23:08:10,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:10,263 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-09 23:08:10,263 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:10,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:10,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:10,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:10,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-09 23:08:10,269 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:10,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:10,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:10,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:10,274 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-09 23:08:10,274 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:08:10,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:08:10,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:08:10,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:08:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:08:10,302 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:08:10,302 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:08:10,302 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:08:10,302 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:08:10,302 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:08:10,302 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:08:10,302 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:08:10,303 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:08:10,303 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB17_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-09 23:08:10,303 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:08:10,303 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:08:10,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,375 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:08:10,375 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:10,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:10,377 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:10,398 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:08:10,398 INFO L446 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_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:10,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:10,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:10,428 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:08:10,428 INFO L446 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_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:10,432 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:08:10,432 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ac33fdc-fd7e-4c18-b3a8-f36689cd8f47/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 [2018-11-09 23:08:10,455 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:08:10,455 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:08:10,729 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 23:08:10,731 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:08:10,731 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:08:10,731 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:08:10,731 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:08:10,731 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 23:08:10,731 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:08:10,731 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:08:10,731 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:08:10,732 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB17_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-09 23:08:10,732 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:08:10,732 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:08:10,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:08:10,769 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:08:10,769 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 23:08:10,770 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 [2018-11-09 23:08:10,771 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,771 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,771 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,771 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,772 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-09 23:08:10,772 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-09 23:08:10,778 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:08:10,779 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 [2018-11-09 23:08:10,779 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,779 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,779 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,781 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-09 23:08:10,781 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-09 23:08:10,789 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:08:10,790 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 [2018-11-09 23:08:10,790 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:08:10,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:08:10,791 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:08:10,791 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:08:10,791 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:08:10,792 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:08:10,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:08:10,798 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 23:08:10,801 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-09 23:08:10,801 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 23:08:10,802 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 23:08:10,802 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 23:08:10,802 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 23:08:10,802 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-09 23:08:10,803 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 23:08:10,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:08:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:08:10,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:08:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:08:10,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:08:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:08:10,825 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 [2018-11-09 23:08:10,825 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-09 23:08:10,840 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 25 states and 30 transitions. Complement of second has 4 states. [2018-11-09 23:08:10,840 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 [2018-11-09 23:08:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-09 23:08:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-09 23:08:10,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-09 23:08:10,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-09 23:08:10,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-09 23:08:10,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:08:10,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2018-11-09 23:08:10,843 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 23:08:10,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2018-11-09 23:08:10,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-09 23:08:10,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-09 23:08:10,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-09 23:08:10,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-09 23:08:10,844 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:08:10,844 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:08:10,844 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:08:10,844 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-09 23:08:10,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-09 23:08:10,844 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 23:08:10,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-09 23:08:10,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 11:08:10 BoogieIcfgContainer [2018-11-09 23:08:10,850 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-09 23:08:10,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:08:10,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:08:10,850 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:08:10,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:08:09" (3/4) ... [2018-11-09 23:08:10,854 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 23:08:10,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:08:10,855 INFO L168 Benchmark]: Toolchain (without parser) took 2280.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -51.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:08:10,856 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:08:10,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:08:10,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.30 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:08:10,858 INFO L168 Benchmark]: Boogie Preprocessor took 17.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:08:10,858 INFO L168 Benchmark]: RCFGBuilder took 200.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:08:10,859 INFO L168 Benchmark]: BuchiAutomizer took 1811.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:08:10,860 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:08:10,863 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.30 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.68 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1811.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 121.1 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. One deterministic module has affine ranking function -1 * z + y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 12 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...