./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash 77773b6d98c13684866533d0b64942a0b1025f7d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 03:40:55,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:40:55,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:40:55,118 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:40:55,119 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:40:55,120 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:40:55,122 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:40:55,124 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:40:55,126 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:40:55,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:40:55,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:40:55,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:40:55,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:40:55,130 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:40:55,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:40:55,132 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:40:55,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:40:55,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:40:55,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:40:55,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:40:55,141 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:40:55,142 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:40:55,145 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:40:55,145 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:40:55,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:40:55,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:40:55,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:40:55,149 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:40:55,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:40:55,151 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:40:55,151 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:40:55,152 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:40:55,152 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:40:55,152 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:40:55,154 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:40:55,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:40:55,155 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:40:55,172 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:40:55,172 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:40:55,173 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:40:55,173 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:40:55,174 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:40:55,174 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:40:55,174 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:40:55,175 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:40:55,175 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:40:55,175 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:40:55,175 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:40:55,175 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:40:55,176 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:40:55,177 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:40:55,178 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:40:55,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:40:55,180 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:40:55,180 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:40:55,180 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:40:55,180 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:40:55,181 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:40:55,182 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:40:55,183 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77773b6d98c13684866533d0b64942a0b1025f7d [2019-01-14 03:40:55,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:40:55,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:40:55,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:40:55,251 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:40:55,251 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:40:55,252 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2019-01-14 03:40:55,311 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fe45215f/d578cf60d2b944fdbde2b3ce5633b2df/FLAG5379c55d5 [2019-01-14 03:40:55,741 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:40:55,742 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2019-01-14 03:40:55,748 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fe45215f/d578cf60d2b944fdbde2b3ce5633b2df/FLAG5379c55d5 [2019-01-14 03:40:56,118 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fe45215f/d578cf60d2b944fdbde2b3ce5633b2df [2019-01-14 03:40:56,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:40:56,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:40:56,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:40:56,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:40:56,134 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:40:56,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d42da0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56, skipping insertion in model container [2019-01-14 03:40:56,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:40:56,169 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:40:56,407 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:40:56,413 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:40:56,436 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:40:56,457 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:40:56,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56 WrapperNode [2019-01-14 03:40:56,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:40:56,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:40:56,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:40:56,459 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:40:56,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:40:56,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:40:56,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:40:56,499 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:40:56,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... [2019-01-14 03:40:56,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:40:56,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:40:56,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:40:56,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:40:56,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:40:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:40:56,951 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:40:56,952 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 03:40:56,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:56 BoogieIcfgContainer [2019-01-14 03:40:56,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:40:56,955 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:40:56,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:40:56,959 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:40:56,960 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:56,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:40:56" (1/3) ... [2019-01-14 03:40:56,962 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76d9b0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:40:56, skipping insertion in model container [2019-01-14 03:40:56,962 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:56,962 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:56" (2/3) ... [2019-01-14 03:40:56,962 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76d9b0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:40:56, skipping insertion in model container [2019-01-14 03:40:56,962 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:56,963 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:56" (3/3) ... [2019-01-14 03:40:56,966 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2019-01-14 03:40:57,043 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:40:57,043 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:40:57,044 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:40:57,044 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:40:57,044 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:40:57,044 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:40:57,045 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:40:57,045 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:40:57,045 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:40:57,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 03:40:57,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:57,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:40:57,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:40:57,086 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-14 03:40:57,086 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:40:57,086 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:40:57,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 03:40:57,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:57,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:40:57,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:40:57,089 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-14 03:40:57,089 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:40:57,097 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2019-01-14 03:40:57,098 INFO L796 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2019-01-14 03:40:57,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:57,104 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2019-01-14 03:40:57,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:57,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:57,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:57,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:57,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2019-01-14 03:40:57,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:57,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:57,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:57,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:57,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2019-01-14 03:40:57,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:57,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:57,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:57,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:57,383 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:40:57,384 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:40:57,384 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:40:57,384 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:40:57,384 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:40:57,385 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:57,385 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:40:57,385 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:40:57,385 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:40:57,385 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:40:57,386 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:40:57,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:57,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:57,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:57,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:57,723 WARN L181 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-14 03:40:57,952 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:40:57,953 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:57,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:57,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:57,975 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:57,975 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Honda state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:58,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:58,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:58,010 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:58,011 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:58,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:58,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:58,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:58,052 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:58,056 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:58,056 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:58,081 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:40:58,081 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:58,103 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:40:58,105 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:40:58,105 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:40:58,106 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:40:58,106 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:40:58,106 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:40:58,106 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:58,106 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:40:58,106 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:40:58,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:40:58,107 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:40:58,107 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:40:58,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:58,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:58,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:58,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:58,315 WARN L181 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-14 03:40:58,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:40:58,377 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:40:58,379 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 [2019-01-14 03:40:58,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:58,380 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:58,381 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:58,381 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:58,381 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:58,384 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:58,384 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:58,399 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:58,399 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 [2019-01-14 03:40:58,400 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:58,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:58,401 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:58,401 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:58,401 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:58,402 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:58,403 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:58,404 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:58,405 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 [2019-01-14 03:40:58,406 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:58,406 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:58,406 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:58,406 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:58,406 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:58,407 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:58,407 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:58,409 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:58,409 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 [2019-01-14 03:40:58,410 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:58,410 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:58,410 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:58,410 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:58,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:58,411 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:58,411 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:58,417 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:40:58,422 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:40:58,422 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-14 03:40:58,424 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:40:58,424 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:40:58,425 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:40:58,425 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-14 03:40:58,426 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:40:58,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:40:58,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:40:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:40:58,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:40:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:40:58,762 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 [2019-01-14 03:40:58,764 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-01-14 03:40:58,875 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2019-01-14 03:40:58,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-14 03:40:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:40:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2019-01-14 03:40:58,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-14 03:40:58,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:40:58,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2019-01-14 03:40:58,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:40:58,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2019-01-14 03:40:58,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:40:58,883 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2019-01-14 03:40:58,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:58,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2019-01-14 03:40:58,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-01-14 03:40:58,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-01-14 03:40:58,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-01-14 03:40:58,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-14 03:40:58,894 INFO L706 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-01-14 03:40:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-01-14 03:40:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-14 03:40:58,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-14 03:40:58,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-01-14 03:40:58,917 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-01-14 03:40:58,917 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-01-14 03:40:58,917 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:40:58,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-01-14 03:40:58,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:58,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:40:58,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:40:58,919 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 03:40:58,919 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:40:58,919 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2019-01-14 03:40:58,920 INFO L796 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2019-01-14 03:40:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:58,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2019-01-14 03:40:58,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:58,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:58,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:58,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:58,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2019-01-14 03:40:58,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:58,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:58,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:58,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:58,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:58,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2019-01-14 03:40:58,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:58,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:58,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,957 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:40:58,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:59,032 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:40:59,032 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:40:59,032 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:40:59,032 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:40:59,032 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:40:59,033 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,033 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:40:59,033 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:40:59,033 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:40:59,033 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:40:59,033 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:40:59,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,523 WARN L181 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-14 03:40:59,597 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:40:59,597 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,604 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:59,604 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:59,626 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:59,626 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:40:59,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:59,632 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:59,643 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:59,644 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Honda state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,663 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:59,664 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:59,669 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:40:59,669 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:40:59,691 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,715 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:40:59,715 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:40:59,744 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:40:59,745 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:40:59,746 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:40:59,746 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:40:59,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:40:59,746 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:40:59,746 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:40:59,746 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:40:59,747 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:40:59,747 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:40:59,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:40:59,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:40:59,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:40:59,913 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:40:59,913 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:40:59,914 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 [2019-01-14 03:40:59,914 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:59,914 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:59,915 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:59,915 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:59,915 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:59,916 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:59,917 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:59,918 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:59,918 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 [2019-01-14 03:40:59,919 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:59,919 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:59,919 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:59,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:59,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:59,920 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:59,920 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:59,921 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:59,922 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 [2019-01-14 03:40:59,922 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:59,923 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:59,923 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:59,923 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:59,923 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:59,924 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:59,924 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:59,931 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:40:59,931 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 [2019-01-14 03:40:59,932 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:40:59,932 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:40:59,932 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:40:59,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:40:59,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:40:59,933 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:40:59,933 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:40:59,937 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:40:59,941 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:40:59,941 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-14 03:40:59,941 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:40:59,941 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:40:59,942 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:40:59,942 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-14 03:40:59,942 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:41:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:41:00,048 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 [2019-01-14 03:41:00,049 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-01-14 03:41:00,068 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2019-01-14 03:41:00,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:41:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:41:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-01-14 03:41:00,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2019-01-14 03:41:00,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-01-14 03:41:00,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2019-01-14 03:41:00,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-01-14 03:41:00,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:41:00,075 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2019-01-14 03:41:00,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-01-14 03:41:00,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-14 03:41:00,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-01-14 03:41:00,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-14 03:41:00,076 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-01-14 03:41:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-01-14 03:41:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-14 03:41:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-14 03:41:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-01-14 03:41:00,078 INFO L729 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-01-14 03:41:00,078 INFO L609 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-01-14 03:41:00,079 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 03:41:00,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-01-14 03:41:00,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:41:00,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:41:00,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:41:00,080 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-01-14 03:41:00,080 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:41:00,080 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2019-01-14 03:41:00,081 INFO L796 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2019-01-14 03:41:00,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2019-01-14 03:41:00,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:41:00,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2019-01-14 03:41:00,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,108 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:41:00,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2019-01-14 03:41:00,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,120 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:41:00,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,205 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:41:00,205 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:41:00,205 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:41:00,206 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:41:00,206 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:41:00,206 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:00,206 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:41:00,206 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:41:00,206 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2019-01-14 03:41:00,206 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:41:00,206 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:41:00,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,379 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:41:00,379 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 03:41:00,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:00,386 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:00,407 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:41:00,407 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:00,411 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:00,411 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:00,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:41:00,434 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:41:00,462 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:41:00,463 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:41:00,464 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:41:00,464 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:41:00,464 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:41:00,464 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:41:00,464 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:00,464 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:41:00,464 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:41:00,464 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2019-01-14 03:41:00,465 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:41:00,465 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:41:00,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:00,645 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-14 03:41:00,671 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:41:00,671 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:41:00,671 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 [2019-01-14 03:41:00,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:41:00,672 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:41:00,672 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:41:00,672 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:41:00,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:41:00,675 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:41:00,676 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:41:00,678 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:41:00,678 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 [2019-01-14 03:41:00,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:41:00,680 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:41:00,680 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:41:00,680 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:41:00,681 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:41:00,681 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:41:00,681 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:41:00,686 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:41:00,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:41:00,690 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-14 03:41:00,690 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:41:00,690 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:41:00,690 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:41:00,690 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-14 03:41:00,692 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:41:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:41:00,745 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 [2019-01-14 03:41:00,745 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-14 03:41:00,770 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-01-14 03:41:00,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:41:00,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:41:00,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-01-14 03:41:00,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-01-14 03:41:00,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,773 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-14 03:41:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:41:00,823 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-14 03:41:00,823 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-14 03:41:00,852 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2019-01-14 03:41:00,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:41:00,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:41:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-01-14 03:41:00,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2019-01-14 03:41:00,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,854 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-14 03:41:00,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:00,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:41:00,902 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-14 03:41:00,902 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-14 03:41:00,925 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2019-01-14 03:41:00,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:41:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:41:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-01-14 03:41:00,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2019-01-14 03:41:00,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-01-14 03:41:00,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2019-01-14 03:41:00,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:00,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2019-01-14 03:41:00,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 03:41:00,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2019-01-14 03:41:00,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-01-14 03:41:00,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-14 03:41:00,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-01-14 03:41:00,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-14 03:41:00,931 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-01-14 03:41:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-01-14 03:41:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2019-01-14 03:41:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 03:41:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-01-14 03:41:00,933 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-01-14 03:41:00,933 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-01-14 03:41:00,933 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-14 03:41:00,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2019-01-14 03:41:00,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 03:41:00,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:41:00,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:41:00,935 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-14 03:41:00,935 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:41:00,935 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2019-01-14 03:41:00,935 INFO L796 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 380#L24-2 [2019-01-14 03:41:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,935 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2019-01-14 03:41:00,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,937 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:41:00,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-01-14 03:41:00,943 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,944 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:41:00,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:00,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2019-01-14 03:41:00,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:41:00,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:41:00,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:41:00,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:41:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:41:01,000 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:41:01,000 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:41:01,000 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:41:01,001 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:41:01,001 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:41:01,001 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,001 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:41:01,002 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:41:01,002 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2019-01-14 03:41:01,002 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:41:01,002 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:41:01,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,136 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:41:01,136 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,142 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:01,142 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:41:01,145 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:41:01,145 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:01,182 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:41:01,188 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:41:01,188 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,208 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:01,208 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:41:01,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:41:01,219 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,240 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:41:01,240 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:41:01,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:41:01,285 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:41:01,286 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:41:01,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:41:01,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:41:01,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:41:01,287 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:41:01,287 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:41:01,287 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:41:01,287 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:41:01,287 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2019-01-14 03:41:01,287 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:41:01,287 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:41:01,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:41:01,472 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:41:01,473 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:41:01,474 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 [2019-01-14 03:41:01,474 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:41:01,475 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:41:01,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:41:01,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:41:01,477 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:41:01,477 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:41:01,477 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:41:01,480 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:41:01,480 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 [2019-01-14 03:41:01,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:41:01,481 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:41:01,481 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:41:01,481 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:41:01,481 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:41:01,481 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:41:01,481 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:41:01,482 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:41:01,483 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 [2019-01-14 03:41:01,483 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:41:01,483 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:41:01,483 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:41:01,483 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:41:01,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:41:01,484 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:41:01,484 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:41:01,487 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:41:01,489 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:41:01,490 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 03:41:01,490 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:41:01,490 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:41:01,490 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:41:01,490 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-01-14 03:41:01,491 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:41:01,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:41:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:01,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:41:01,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:41:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:41:01,533 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 [2019-01-14 03:41:01,534 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-01-14 03:41:01,545 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2019-01-14 03:41:01,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:41:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:41:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2019-01-14 03:41:01,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-14 03:41:01,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:01,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2019-01-14 03:41:01,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:01,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2019-01-14 03:41:01,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:41:01,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2019-01-14 03:41:01,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:41:01,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-01-14 03:41:01,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:41:01,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:41:01,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:41:01,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:41:01,549 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:41:01,549 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:41:01,549 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:41:01,550 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2019-01-14 03:41:01,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 03:41:01,550 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:41:01,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 03:41:01,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:41:01 BoogieIcfgContainer [2019-01-14 03:41:01,557 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:41:01,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:41:01,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:41:01,558 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:41:01,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:56" (3/4) ... [2019-01-14 03:41:01,562 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 03:41:01,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:41:01,563 INFO L168 Benchmark]: Toolchain (without parser) took 5438.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-01-14 03:41:01,564 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:41:01,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:41:01,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:41:01,566 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:41:01,566 INFO L168 Benchmark]: RCFGBuilder took 420.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 03:41:01,567 INFO L168 Benchmark]: BuchiAutomizer took 4602.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -49.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-01-14 03:41:01,568 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:41:01,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 39.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 420.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4602.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -49.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...