./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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/loop-invgen/fragtest_simple_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 a94bf9d893e116ed4626eae9cec69d948eb5bc31 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:43:56,568 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:43:56,570 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:43:56,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:43:56,583 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:43:56,584 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:43:56,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:43:56,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:43:56,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:43:56,590 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:43:56,591 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:43:56,591 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:43:56,592 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:43:56,593 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:43:56,594 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:43:56,595 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:43:56,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:43:56,598 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:43:56,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:43:56,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:43:56,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:43:56,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:43:56,614 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:43:56,614 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:43:56,614 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:43:56,615 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:43:56,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:43:56,620 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:43:56,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:43:56,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:43:56,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:43:56,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:43:56,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:43:56,626 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:43:56,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:43:56,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:43:56,629 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:43:56,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:43:56,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:43:56,663 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:43:56,663 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:43:56,664 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:43:56,665 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:43:56,665 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:43:56,665 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:43:56,665 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:43:56,665 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:43:56,665 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:43:56,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:43:56,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:43:56,666 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:43:56,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:43:56,666 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:43:56,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:43:56,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:43:56,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:43:56,668 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:43:56,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:43:56,669 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:43:56,669 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:43:56,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:43:56,669 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:43:56,669 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:43:56,671 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:43:56,671 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 -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2018-11-28 23:43:56,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:43:56,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:43:56,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:43:56,751 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:43:56,752 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:43:56,753 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-11-28 23:43:56,810 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82158fed8/238482ec5c1a4e7e909b11ac5544abda/FLAG400f85e71 [2018-11-28 23:43:57,304 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:43:57,305 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-11-28 23:43:57,312 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82158fed8/238482ec5c1a4e7e909b11ac5544abda/FLAG400f85e71 [2018-11-28 23:43:57,642 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82158fed8/238482ec5c1a4e7e909b11ac5544abda [2018-11-28 23:43:57,645 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:43:57,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:43:57,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:43:57,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:43:57,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:43:57,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460492eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57, skipping insertion in model container [2018-11-28 23:43:57,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:43:57,684 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:43:57,889 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:43:57,896 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:43:57,920 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:43:57,941 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:43:57,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57 WrapperNode [2018-11-28 23:43:57,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:43:57,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:43:57,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:43:57,943 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:43:57,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:43:57,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:43:57,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:43:57,987 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:43:57,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:57,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:58,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:58,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (1/1) ... [2018-11-28 23:43:58,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:43:58,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:43:58,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:43:58,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:43:58,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (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 [2018-11-28 23:43:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:43:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:43:58,469 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:43:58,470 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-28 23:43:58,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58 BoogieIcfgContainer [2018-11-28 23:43:58,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:43:58,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:43:58,471 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:43:58,479 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:43:58,480 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:43:57" (1/3) ... [2018-11-28 23:43:58,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@721eed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:43:58, skipping insertion in model container [2018-11-28 23:43:58,482 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:57" (2/3) ... [2018-11-28 23:43:58,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@721eed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:43:58, skipping insertion in model container [2018-11-28 23:43:58,485 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58" (3/3) ... [2018-11-28 23:43:58,487 INFO L375 chiAutomizerObserver]: Analyzing ICFG fragtest_simple_true-unreach-call_true-termination.i [2018-11-28 23:43:58,551 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:43:58,552 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:43:58,553 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:43:58,553 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:43:58,553 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:43:58,553 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:43:58,553 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:43:58,553 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:43:58,554 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:43:58,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 23:43:58,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-28 23:43:58,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:43:58,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:43:58,607 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:43:58,608 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:43:58,608 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:43:58,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 23:43:58,610 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-28 23:43:58,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:43:58,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:43:58,611 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:43:58,611 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:43:58,619 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2018-11-28 23:43:58,620 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2;main_~i~0 := 1 + main_~i~0; 3#L17-2true [2018-11-28 23:43:58,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:43:58,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:58,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:58,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:58,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:58,728 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 23:43:58,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:58,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:58,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:58,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:58,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:43:58,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:58,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:58,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:58,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:58,854 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:58,855 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:58,855 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:58,855 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:58,856 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:43:58,856 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:58,856 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:58,857 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:58,857 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:43:58,857 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:58,857 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:58,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:58,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:59,019 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:43:59,020 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 [2018-11-28 23:43:59,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:43:59,025 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:43:59,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:43:59,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:43:59,077 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:43:59,079 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:59,079 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:59,079 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:59,079 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:59,079 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:43:59,080 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,080 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:59,080 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:59,080 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:43:59,080 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:59,080 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:59,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:59,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:59,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:43:59,332 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:43:59,334 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:59,336 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:59,337 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:59,338 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:59,338 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:59,338 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:59,341 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:59,342 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:59,351 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:43:59,359 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:43:59,359 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:43:59,362 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:43:59,362 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:43:59,363 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:43:59,364 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-11-28 23:43:59,366 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:43:59,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:59,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:59,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:43:59,544 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:43:59,545 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 2 states. [2018-11-28 23:43:59,638 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 2 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-11-28 23:43:59,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:43:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:43:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-28 23:43:59,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2018-11-28 23:43:59,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:59,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 23:43:59,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:59,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 23:43:59,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:59,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-11-28 23:43:59,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:43:59,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 18 transitions. [2018-11-28 23:43:59,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 23:43:59,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 23:43:59,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2018-11-28 23:43:59,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:43:59,658 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 23:43:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2018-11-28 23:43:59,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:43:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:43:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-11-28 23:43:59,685 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 23:43:59,685 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 23:43:59,685 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:43:59,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-11-28 23:43:59,686 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:43:59,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:43:59,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:43:59,687 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:43:59,687 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:43:59,687 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 76#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 77#L17-3 assume !(main_~i~0 > main_~pvlen~0); 87#L20-1 main_~i~0 := 0; 84#L24-2 [2018-11-28 23:43:59,688 INFO L796 eck$LassoCheckResult]: Loop: 84#L24-2 assume !!(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 84#L24-2 [2018-11-28 23:43:59,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,688 INFO L82 PathProgramCache]: Analyzing trace with hash 961578, now seen corresponding path program 1 times [2018-11-28 23:43:59,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,700 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2018-11-28 23:43:59,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,710 INFO L82 PathProgramCache]: Analyzing trace with hash 29808947, now seen corresponding path program 1 times [2018-11-28 23:43:59,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,798 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:59,798 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:59,798 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:59,799 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:59,799 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:43:59,799 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,799 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:59,800 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:59,800 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:43:59,800 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:59,801 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:59,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:59,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:59,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:00,035 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:00,035 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2018-11-28 23:44:00,039 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:00,039 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:44:00,065 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:00,065 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:00,092 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:00,094 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:00,094 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:00,094 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:00,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:00,095 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:00,095 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:00,095 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:00,095 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:00,095 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:44:00,095 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:00,095 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:00,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:00,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:00,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:00,209 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:00,210 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:00,210 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:00,211 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:00,212 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:00,212 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:00,212 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:00,212 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:00,214 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:00,214 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:00,222 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:00,229 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:00,229 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:00,229 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:00,230 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:00,230 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:00,230 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-11-28 23:44:00,231 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:00,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:00,309 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:44:00,309 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 2 states. [2018-11-28 23:44:00,451 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 2 states. Result 28 states and 39 transitions. Complement of second has 6 states. [2018-11-28 23:44:00,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-28 23:44:00,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:44:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:44:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:44:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2018-11-28 23:44:00,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 23:44:00,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 22 transitions. [2018-11-28 23:44:00,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 23:44:00,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-28 23:44:00,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2018-11-28 23:44:00,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:00,470 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-11-28 23:44:00,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2018-11-28 23:44:00,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-11-28 23:44:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 23:44:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2018-11-28 23:44:00,480 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-11-28 23:44:00,480 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-11-28 23:44:00,480 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:44:00,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2018-11-28 23:44:00,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 23:44:00,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:00,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:00,482 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:44:00,487 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:44:00,487 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 152#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 153#L17-3 assume !(main_~i~0 > main_~pvlen~0); 164#L20-1 main_~i~0 := 0; 160#L24-2 assume !(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3; 155#L24-3 main_~j~0 := 0;main_~n~0 := main_~i~0; 156#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 163#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2018-11-28 23:44:00,488 INFO L796 eck$LassoCheckResult]: Loop: 158#L4-2 main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 162#L36 assume !(main_~j~0 >= main_~n~0); 165#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 166#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2018-11-28 23:44:00,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1019916713, now seen corresponding path program 1 times [2018-11-28 23:44:00,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2528781, now seen corresponding path program 1 times [2018-11-28 23:44:00,537 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1891682659, now seen corresponding path program 1 times [2018-11-28 23:44:00,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:00,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:44:00,810 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:44:00,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:00,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 23:44:00,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 8 [2018-11-28 23:44:01,104 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:01,104 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:01,104 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:01,105 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:01,105 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:01,105 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:01,105 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:01,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:01,106 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:44:01,106 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:01,106 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:01,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,264 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:01,264 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 [2018-11-28 23:44:01,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:01,269 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:44:01,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:01,295 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:01,652 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:01,654 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:01,654 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:01,654 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:01,654 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:01,655 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:01,655 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:01,655 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:01,655 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:01,655 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:44:01,655 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:01,655 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:01,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:01,826 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:01,826 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:01,826 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:01,827 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:01,829 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:01,829 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:01,829 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:01,830 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:01,831 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:01,831 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:01,838 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:01,843 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:01,843 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:44:01,843 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:01,844 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:01,844 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:01,845 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-11-28 23:44:01,845 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:01,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:01,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:01,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:01,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:01,963 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 23:44:01,963 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-28 23:44:02,031 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 25 states and 33 transitions. Complement of second has 7 states. [2018-11-28 23:44:02,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:44:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2018-11-28 23:44:02,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 23:44:02,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-28 23:44:02,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 8 letters. [2018-11-28 23:44:02,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2018-11-28 23:44:02,042 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2018-11-28 23:44:02,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:02,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:02,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:02,043 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,043 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:44:02,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:44:02,048 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 8 states. [2018-11-28 23:44:02,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:02,050 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:44:02,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:44:02,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:44:02,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:02,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:02,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:02,052 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,052 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,052 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,052 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:44:02,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:44:02,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:44:02 BoogieIcfgContainer [2018-11-28 23:44:02,060 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:44:02,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:44:02,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:44:02,060 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:44:02,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58" (3/4) ... [2018-11-28 23:44:02,064 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:44:02,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:44:02,065 INFO L168 Benchmark]: Toolchain (without parser) took 4419.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.4 MB in the beginning and 933.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 162.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,067 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-28 23:44:02,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.99 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. [2018-11-28 23:44:02,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.12 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. [2018-11-28 23:44:02,069 INFO L168 Benchmark]: Boogie Preprocessor took 20.22 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,071 INFO L168 Benchmark]: RCFGBuilder took 463.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,073 INFO L168 Benchmark]: BuchiAutomizer took 3588.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.7 MB in the end (delta: 186.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,074 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 1.2 GB. Free memory is still 933.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:02,079 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 293.99 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 43.12 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 20.22 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3588.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.7 MB in the end (delta: 186.6 MB). Peak memory consumption was 186.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.17 ms. Allocated memory is still 1.2 GB. Free memory is still 933.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function k and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 27 SDslu, 5 SDs, 0 SdLazy, 25 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf99 lsp64 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq170 hnf91 smp85 dnf98 smp100 tf110 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...