./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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/termination-restricted-15/b.10_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 65c77d618a9e810a6bfd209782657510debb85fd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:38:22,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:38:22,702 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:38:22,719 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:38:22,720 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:38:22,722 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:38:22,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:38:22,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:38:22,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:38:22,739 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:38:22,739 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:38:22,740 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:38:22,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:38:22,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:38:22,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:38:22,750 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:38:22,751 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:38:22,755 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:38:22,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:38:22,763 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:38:22,765 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:38:22,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:38:22,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:38:22,772 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:38:22,772 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:38:22,773 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:38:22,774 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:38:22,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:38:22,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:38:22,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:38:22,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:38:22,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:38:22,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:38:22,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:38:22,782 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:38:22,785 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:38:22,787 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:38:22,803 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:38:22,803 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:38:22,805 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:38:22,805 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:38:22,805 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:38:22,806 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:38:22,806 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:38:22,806 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:38:22,806 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:38:22,806 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:38:22,806 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:38:22,806 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:38:22,807 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:38:22,808 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:38:22,809 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:38:22,809 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:38:22,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:38:22,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:38:22,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:38:22,810 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:38:22,810 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:38:22,810 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:38:22,811 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:38:22,812 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:38:22,813 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65c77d618a9e810a6bfd209782657510debb85fd [2019-01-01 21:38:22,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:38:22,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:38:22,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:38:22,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:38:22,886 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:38:22,888 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c [2019-01-01 21:38:22,953 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f917dbe/c8b4ea9aa884403387eb19d00eac21f0/FLAGcce5990a4 [2019-01-01 21:38:23,378 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:38:23,379 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/b.10_true-termination_true-no-overflow.c [2019-01-01 21:38:23,385 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f917dbe/c8b4ea9aa884403387eb19d00eac21f0/FLAGcce5990a4 [2019-01-01 21:38:23,774 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41f917dbe/c8b4ea9aa884403387eb19d00eac21f0 [2019-01-01 21:38:23,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:38:23,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:38:23,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:38:23,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:38:23,784 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:38:23,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:38:23" (1/1) ... [2019-01-01 21:38:23,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2d9836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:23, skipping insertion in model container [2019-01-01 21:38:23,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:38:23" (1/1) ... [2019-01-01 21:38:23,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:38:23,815 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:38:24,037 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:38:24,044 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:38:24,069 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:38:24,088 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:38:24,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24 WrapperNode [2019-01-01 21:38:24,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:38:24,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:38:24,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:38:24,090 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:38:24,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:38:24,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:38:24,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:38:24,134 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:38:24,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (1/1) ... [2019-01-01 21:38:24,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:38:24,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:38:24,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:38:24,163 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:38:24,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (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 [2019-01-01 21:38:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:38:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:38:24,479 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:38:24,480 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 21:38:24,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:24 BoogieIcfgContainer [2019-01-01 21:38:24,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:38:24,481 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:38:24,481 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:38:24,484 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:38:24,485 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:24,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:38:23" (1/3) ... [2019-01-01 21:38:24,486 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b8da4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:38:24, skipping insertion in model container [2019-01-01 21:38:24,486 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:24,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:24" (2/3) ... [2019-01-01 21:38:24,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b8da4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:38:24, skipping insertion in model container [2019-01-01 21:38:24,487 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:24,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:24" (3/3) ... [2019-01-01 21:38:24,489 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.10_true-termination_true-no-overflow.c [2019-01-01 21:38:24,558 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:38:24,559 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:38:24,559 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:38:24,559 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:38:24,560 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:38:24,560 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:38:24,560 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:38:24,560 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:38:24,560 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:38:24,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-01 21:38:24,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:24,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:24,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:24,602 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:38:24,602 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 21:38:24,602 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:38:24,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-01 21:38:24,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:24,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:24,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:24,604 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:38:24,604 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 21:38:24,611 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L15-2true [2019-01-01 21:38:24,612 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 6#L12true assume main_~x~0 > 0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2019-01-01 21:38:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:24,618 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 21:38:24,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:24,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:24,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:24,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:24,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-01-01 21:38:24,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:24,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:24,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:24,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-01-01 21:38:24,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:24,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:24,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:24,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:24,977 WARN L181 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2019-01-01 21:38:25,018 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:25,019 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:25,019 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:25,020 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:25,020 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:38:25,020 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:25,020 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:25,020 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:25,021 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:38:25,021 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:25,021 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:25,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,298 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:25,299 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) [2019-01-01 21:38:25,308 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:25,309 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:25,336 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:25,336 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:38:25,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:25,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:25,368 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:25,368 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:38:25,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:25,374 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 [2019-01-01 21:38:25,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:25,405 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:25,433 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:38:25,435 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:25,435 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:25,435 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:25,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:25,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:38:25,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:25,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:25,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:25,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:38:25,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:25,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:25,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,634 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-01 21:38:25,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:25,789 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:25,794 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:38:25,795 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 [2019-01-01 21:38:25,797 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:25,797 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:25,798 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:25,798 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:25,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:25,803 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:25,811 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:25,811 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 [2019-01-01 21:38:25,812 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:25,812 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:25,815 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:25,815 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:25,815 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:25,820 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:25,820 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:25,833 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:38:25,845 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:38:25,846 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 21:38:25,849 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:38:25,849 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:38:25,849 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:38:25,854 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-01-01 21:38:25,856 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:38:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:25,924 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:25,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:25,952 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 [2019-01-01 21:38:25,954 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-01-01 21:38:26,006 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 34 transitions. Complement of second has 5 states. [2019-01-01 21:38:26,007 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 [2019-01-01 21:38:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:38:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-01-01 21:38:26,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-01 21:38:26,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:26,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-01 21:38:26,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:26,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2019-01-01 21:38:26,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:26,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2019-01-01 21:38:26,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:26,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 15 transitions. [2019-01-01 21:38:26,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-01 21:38:26,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-01-01 21:38:26,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2019-01-01 21:38:26,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:38:26,025 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2019-01-01 21:38:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2019-01-01 21:38:26,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-01-01 21:38:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-01 21:38:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2019-01-01 21:38:26,054 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2019-01-01 21:38:26,055 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2019-01-01 21:38:26,055 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:38:26,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2019-01-01 21:38:26,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:26,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:26,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:26,056 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:38:26,057 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:38:26,057 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 68#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 69#L12 [2019-01-01 21:38:26,057 INFO L796 eck$LassoCheckResult]: Loop: 69#L12 assume !(main_~x~0 > 0); 63#L15 assume main_~y~0 > 0;main_~y~0 := main_~y~0 - 1; 64#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 69#L12 [2019-01-01 21:38:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:26,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-01 21:38:26,058 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:26,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:26,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:26,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:26,082 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2019-01-01 21:38:26,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:26,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:26,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:26,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:26,104 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2019-01-01 21:38:26,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:26,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:26,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:26,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:26,326 WARN L181 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2019-01-01 21:38:26,344 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:26,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:26,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:26,345 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:26,345 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:38:26,345 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:26,346 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:26,346 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:26,346 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:38:26,346 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:26,347 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:26,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:26,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:26,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:26,868 WARN L181 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 17 [2019-01-01 21:38:26,869 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:26,869 INFO L412 LassoAnalysis]: Checking for nontermination... 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) [2019-01-01 21:38:26,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:26,875 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:26,924 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:26,925 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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) [2019-01-01 21:38:26,936 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:26,936 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:26,983 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:26,983 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:38:26,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:26,998 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 21:38:27,028 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:27,028 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:39,112 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-01-01 21:38:39,120 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:39,120 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:39,121 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:39,121 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:39,121 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:38:39,121 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:39,121 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:39,121 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:39,121 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.10_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:38:39,122 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:39,122 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:39,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:39,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:39,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:39,419 WARN L181 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 17 [2019-01-01 21:38:39,427 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:39,428 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:38:39,428 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 [2019-01-01 21:38:39,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:39,430 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:39,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:39,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:39,432 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:39,433 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:39,437 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:39,438 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 [2019-01-01 21:38:39,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:39,439 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:39,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:39,440 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-01 21:38:39,441 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:39,443 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-01-01 21:38:39,443 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:39,456 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:38:39,467 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-01 21:38:39,467 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-01-01 21:38:39,468 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:38:39,468 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:38:39,468 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:38:39,468 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-01-01 21:38:39,469 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:38:39,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:39,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:39,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:39,657 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 [2019-01-01 21:38:39,657 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-01-01 21:38:39,727 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 35 states and 53 transitions. Complement of second has 7 states. [2019-01-01 21:38:39,728 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 [2019-01-01 21:38:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 21:38:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-01-01 21:38:39,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2019-01-01 21:38:39,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:39,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-01 21:38:39,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:39,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2019-01-01 21:38:39,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:39,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2019-01-01 21:38:39,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:39,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 24 states and 35 transitions. [2019-01-01 21:38:39,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-01-01 21:38:39,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-01-01 21:38:39,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2019-01-01 21:38:39,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:38:39,736 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2019-01-01 21:38:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2019-01-01 21:38:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2019-01-01 21:38:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-01 21:38:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2019-01-01 21:38:39,742 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-01-01 21:38:39,742 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2019-01-01 21:38:39,743 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 21:38:39,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2019-01-01 21:38:39,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:39,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:39,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:39,744 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-01 21:38:39,744 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:38:39,746 INFO L794 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 153#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 163#L12 assume !(main_~x~0 > 0); 147#L15 [2019-01-01 21:38:39,746 INFO L796 eck$LassoCheckResult]: Loop: 147#L15 assume !(main_~y~0 > 0); 148#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 154#L12 assume !(main_~x~0 > 0); 147#L15 [2019-01-01 21:38:39,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:39,747 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-01-01 21:38:39,747 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:39,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:39,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:39,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:39,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2019-01-01 21:38:39,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:39,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:39,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:39,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:39,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:39,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:38:39,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 21:38:39,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 21:38:39,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 21:38:39,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 21:38:39,840 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-01-01 21:38:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:38:39,873 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2019-01-01 21:38:39,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 21:38:39,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2019-01-01 21:38:39,875 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:38:39,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-01-01 21:38:39,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:38:39,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:38:39,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:38:39,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:38:39,876 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:39,876 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:39,876 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:39,876 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 21:38:39,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:38:39,876 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:38:39,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:38:39,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:38:39 BoogieIcfgContainer [2019-01-01 21:38:39,884 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:38:39,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:38:39,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:38:39,885 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:38:39,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:24" (3/4) ... [2019-01-01 21:38:39,889 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:38:39,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:38:39,891 INFO L168 Benchmark]: Toolchain (without parser) took 16112.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.7 MB in the beginning and 923.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:39,892 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-01-01 21:38:39,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.45 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:39,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.86 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:39,895 INFO L168 Benchmark]: Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:39,895 INFO L168 Benchmark]: RCFGBuilder took 317.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:39,897 INFO L168 Benchmark]: BuchiAutomizer took 15403.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.5 MB in the end (delta: 170.9 MB). Peak memory consumption was 170.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:39,898 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 1.2 GB. Free memory is still 923.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:39,904 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.45 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.86 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.93 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 317.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15403.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.5 MB in the end (delta: 170.9 MB). Peak memory consumption was 170.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.48 ms. Allocated memory is still 1.2 GB. Free memory is still 923.5 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 14.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 16 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf98 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq127 hnf96 smp100 dnf132 smp96 tf106 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...