./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB16_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_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB16_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 ee984bca7200ddfe2e041842f64b6ddcaef24aa5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:20:49,092 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:20:49,094 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:20:49,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:20:49,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:20:49,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:20:49,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:20:49,105 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:20:49,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:20:49,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:20:49,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:20:49,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:20:49,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:20:49,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:20:49,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:20:49,111 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:20:49,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:20:49,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:20:49,115 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:20:49,116 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:20:49,117 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:20:49,118 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:20:49,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:20:49,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:20:49,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:20:49,120 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:20:49,121 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:20:49,122 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:20:49,122 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:20:49,123 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:20:49,123 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:20:49,124 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:20:49,124 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:20:49,124 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:20:49,125 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:20:49,126 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:20:49,126 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 11:20:49,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:20:49,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:20:49,136 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:20:49,136 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:20:49,136 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:20:49,136 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 11:20:49,136 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 11:20:49,136 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 11:20:49,136 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 11:20:49,137 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:20:49,137 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 11:20:49,138 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:20:49,138 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 11:20:49,139 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:20:49,139 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:20:49,139 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 11:20:49,139 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 11:20:49,140 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_46812f54-6a1f-4c17-a334-0110723cadc1/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 -> ee984bca7200ddfe2e041842f64b6ddcaef24aa5 [2018-11-10 11:20:49,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:20:49,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:20:49,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:20:49,181 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:20:49,181 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:20:49,181 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB16_true-termination_true-no-overflow.c [2018-11-10 11:20:49,238 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/data/857b13100/6382d338af5544feb7a9c9aa2b846720/FLAGb523ad565 [2018-11-10 11:20:49,573 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:20:49,573 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/sv-benchmarks/c/termination-restricted-15/PastaB16_true-termination_true-no-overflow.c [2018-11-10 11:20:49,579 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/data/857b13100/6382d338af5544feb7a9c9aa2b846720/FLAGb523ad565 [2018-11-10 11:20:49,593 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/bin-2019/uautomizer/data/857b13100/6382d338af5544feb7a9c9aa2b846720 [2018-11-10 11:20:49,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:20:49,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:20:49,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:20:49,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:20:49,602 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:20:49,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380cee43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49, skipping insertion in model container [2018-11-10 11:20:49,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:20:49,626 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:20:49,741 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:20:49,744 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:20:49,754 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:20:49,766 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:20:49,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49 WrapperNode [2018-11-10 11:20:49,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:20:49,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:20:49,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:20:49,767 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:20:49,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:20:49,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:20:49,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:20:49,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:20:49,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... [2018-11-10 11:20:49,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:20:49,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:20:49,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:20:49,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:20:49,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:20:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:20:49,989 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:20:49,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:20:49 BoogieIcfgContainer [2018-11-10 11:20:49,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:20:49,990 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 11:20:49,991 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 11:20:49,994 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 11:20:49,994 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:20:49,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:20:49" (1/3) ... [2018-11-10 11:20:49,995 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a62d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:20:49, skipping insertion in model container [2018-11-10 11:20:49,995 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:20:49,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:20:49" (2/3) ... [2018-11-10 11:20:49,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a62d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:20:49, skipping insertion in model container [2018-11-10 11:20:49,996 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:20:49,996 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:20:49" (3/3) ... [2018-11-10 11:20:49,998 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB16_true-termination_true-no-overflow.c [2018-11-10 11:20:50,050 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:20:50,051 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 11:20:50,051 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 11:20:50,051 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 11:20:50,051 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:20:50,051 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:20:50,051 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 11:20:50,052 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:20:50,052 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 11:20:50,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 11:20:50,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 11:20:50,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:20:50,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:20:50,084 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 11:20:50,084 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 11:20:50,084 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 11:20:50,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 11:20:50,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 11:20:50,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:20:50,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:20:50,086 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 11:20:50,086 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 11:20:50,093 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L11-3true [2018-11-10 11:20:50,094 INFO L795 eck$LassoCheckResult]: Loop: 10#L11-3true assume true; 4#L11-1true assume !!(main_~x~0 > 0); 13#L12-3true assume !true; 11#L12-4true main_~x~0 := main_~x~0 - 1; 10#L11-3true [2018-11-10 11:20:50,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,099 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 11:20:50,101 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-10 11:20:50,168 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:20:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:20:50,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:20:50,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:20:50,195 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 11:20:50,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:20:50,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:20:50,208 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-10 11:20:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:20:50,213 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-10 11:20:50,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:20:50,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-10 11:20:50,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 11:20:50,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-10 11:20:50,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 11:20:50,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 11:20:50,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-10 11:20:50,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 11:20:50,221 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 11:20:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-10 11:20:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-10 11:20:50,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-10 11:20:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-10 11:20:50,243 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 11:20:50,243 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 11:20:50,243 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 11:20:50,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-10 11:20:50,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 11:20:50,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:20:50,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:20:50,244 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 11:20:50,244 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 11:20:50,244 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_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 31#L11-3 [2018-11-10 11:20:50,244 INFO L795 eck$LassoCheckResult]: Loop: 31#L11-3 assume true; 32#L11-1 assume !!(main_~x~0 > 0); 33#L12-3 assume true; 35#L12-1 assume !(main_~y~0 > 0); 36#L12-4 main_~x~0 := main_~x~0 - 1; 31#L11-3 [2018-11-10 11:20:50,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 11:20:50,245 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,250 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-10 11:20:50,251 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,252 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 11:20:50,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-10 11:20:50,261 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,317 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 11:20:50,318 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 11:20:50,318 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 11:20:50,318 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 11:20:50,319 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 11:20:50,319 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 11:20:50,319 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 11:20:50,319 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 11:20:50,319 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB16_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 11:20:50,319 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 11:20:50,320 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 11:20:50,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,426 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 11:20:50,427 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,431 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 11:20:50,431 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,453 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 11:20:50,453 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 11:20:50,475 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 11:20:50,476 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 11:20:50,476 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 11:20:50,476 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 11:20:50,476 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 11:20:50,476 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 11:20:50,476 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 11:20:50,476 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 11:20:50,477 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 11:20:50,477 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB16_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 11:20:50,477 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 11:20:50,477 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 11:20:50,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,545 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 11:20:50,548 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 11:20:50,550 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 [2018-11-10 11:20:50,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 11:20:50,551 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 11:20:50,551 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 11:20:50,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 11:20:50,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 11:20:50,553 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 11:20:50,554 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 11:20:50,561 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 11:20:50,566 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 11:20:50,566 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 11:20:50,567 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 11:20:50,568 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 11:20:50,568 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 11:20:50,568 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 11:20:50,569 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 11:20:50,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:20:50,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:20:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:20:50,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:20:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:20:50,663 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 [2018-11-10 11:20:50,664 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-10 11:20:50,688 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. [2018-11-10 11:20:50,689 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 [2018-11-10 11:20:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 11:20:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-10 11:20:50,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-10 11:20:50,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-10 11:20:50,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-10 11:20:50,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-11-10 11:20:50,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 11:20:50,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-11-10 11:20:50,694 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-10 11:20:50,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-10 11:20:50,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-10 11:20:50,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 11:20:50,694 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 11:20:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-10 11:20:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 11:20:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 11:20:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-10 11:20:50,696 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 11:20:50,696 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 11:20:50,696 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 11:20:50,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-10 11:20:50,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 11:20:50,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:20:50,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:20:50,697 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 11:20:50,697 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 11:20:50,697 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_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 94#L11-3 assume true; 95#L11-1 assume !!(main_~x~0 > 0); 96#L12-3 [2018-11-10 11:20:50,697 INFO L795 eck$LassoCheckResult]: Loop: 96#L12-3 assume true; 100#L12-1 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 96#L12-3 [2018-11-10 11:20:50,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,697 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-10 11:20:50,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-10 11:20:50,701 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,705 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-10 11:20:50,705 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:20:50,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:20:50,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:20:50,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:20:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:20:50,718 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 11:20:50,718 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 11:20:50,718 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 11:20:50,718 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 11:20:50,718 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 11:20:50,718 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 11:20:50,719 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 11:20:50,719 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 11:20:50,719 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB16_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 11:20:50,719 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 11:20:50,719 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 11:20:50,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,764 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 11:20:50,765 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,774 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 11:20:50,775 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 11:20:50,803 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 11:20:50,803 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_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,805 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 11:20:50,805 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 11:20:50,824 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 11:20:50,824 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_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,827 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 11:20:50,827 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46812f54-6a1f-4c17-a334-0110723cadc1/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 [2018-11-10 11:20:50,848 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 11:20:50,848 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 11:20:50,870 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 11:20:50,871 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 11:20:50,872 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 11:20:50,872 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 11:20:50,872 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 11:20:50,872 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 11:20:50,872 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 11:20:50,872 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 11:20:50,872 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 11:20:50,872 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB16_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 11:20:50,872 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 11:20:50,872 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 11:20:50,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 11:20:50,906 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 11:20:50,907 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 11:20:50,907 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 [2018-11-10 11:20:50,907 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 11:20:50,908 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 11:20:50,908 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 11:20:50,908 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 11:20:50,910 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 11:20:50,910 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 11:20:50,916 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 11:20:50,916 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 [2018-11-10 11:20:50,917 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 11:20:50,917 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 11:20:50,917 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 11:20:50,917 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 11:20:50,917 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 11:20:50,918 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 11:20:50,918 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 11:20:50,922 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 11:20:50,924 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 11:20:50,924 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 11:20:50,925 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 11:20:50,925 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 11:20:50,925 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 11:20:50,925 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 11:20:50,925 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 11:20:50,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:20:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:20:50,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:20:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:20:50,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:20:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:20:50,942 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 [2018-11-10 11:20:50,943 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 11:20:50,950 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. [2018-11-10 11:20:50,950 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 [2018-11-10 11:20:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 11:20:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-10 11:20:50,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 11:20:50,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 11:20:50,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 11:20:50,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 11:20:50,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2018-11-10 11:20:50,953 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 11:20:50,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2018-11-10 11:20:50,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 11:20:50,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 11:20:50,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 11:20:50,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 11:20:50,953 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:20:50,953 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:20:50,953 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:20:50,953 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 11:20:50,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:20:50,954 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 11:20:50,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 11:20:50,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:20:50 BoogieIcfgContainer [2018-11-10 11:20:50,958 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 11:20:50,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:20:50,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:20:50,959 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:20:50,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:20:49" (3/4) ... [2018-11-10 11:20:50,962 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 11:20:50,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:20:50,963 INFO L168 Benchmark]: Toolchain (without parser) took 1366.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 963.0 MB in the beginning and 1.0 GB in the end (delta: -46.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:20:50,964 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:20:50,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.67 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:20:50,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.66 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:20:50,966 INFO L168 Benchmark]: Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:20:50,966 INFO L168 Benchmark]: RCFGBuilder took 184.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:20:50,967 INFO L168 Benchmark]: BuchiAutomizer took 968.07 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: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:20:50,967 INFO L168 Benchmark]: Witness Printer took 3.37 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. [2018-11-10 11:20:50,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.67 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 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 24.66 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 184.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 968.07 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: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.37 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 x and consists of 4 locations. One deterministic module has affine ranking function 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 0.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 26 SDtfs, 13 SDslu, 9 SDs, 0 SdLazy, 6 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 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...