./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/c.08_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/c.08_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 8d821d1d8ee2aa872e0bf75fb913cf046d5ff3f8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:17:01,816 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:17:01,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:17:01,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:17:01,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:17:01,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:17:01,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:17:01,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:17:01,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:17:01,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:17:01,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:17:01,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:17:01,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:17:01,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:17:01,853 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:17:01,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:17:01,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:17:01,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:17:01,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:17:01,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:17:01,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:17:01,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:17:01,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:17:01,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:17:01,867 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:17:01,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:17:01,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:17:01,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:17:01,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:17:01,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:17:01,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:17:01,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:17:01,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:17:01,874 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:17:01,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:17:01,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:17:01,876 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:17:01,893 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:17:01,894 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:17:01,895 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:17:01,895 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:17:01,895 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:17:01,895 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:17:01,895 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:17:01,896 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:17:01,896 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:17:01,896 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:17:01,896 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:17:01,896 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:17:01,897 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:17:01,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:17:01,898 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:17:01,898 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:17:01,898 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:17:01,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:17:01,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:17:01,899 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:17:01,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:17:01,899 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:17:01,899 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:17:01,900 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:17:01,900 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 -> 8d821d1d8ee2aa872e0bf75fb913cf046d5ff3f8 [2018-11-28 23:17:01,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:17:01,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:17:01,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:17:01,969 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:17:01,970 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:17:01,971 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/c.08_true-termination_true-no-overflow.c [2018-11-28 23:17:02,031 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf610ee0/ef7c122c78d34357ab170e434708fe0b/FLAG3440b366b [2018-11-28 23:17:02,459 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:17:02,460 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/c.08_true-termination_true-no-overflow.c [2018-11-28 23:17:02,467 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf610ee0/ef7c122c78d34357ab170e434708fe0b/FLAG3440b366b [2018-11-28 23:17:02,844 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cf610ee0/ef7c122c78d34357ab170e434708fe0b [2018-11-28 23:17:02,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:17:02,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:17:02,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:02,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:17:02,854 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:17:02,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:02" (1/1) ... [2018-11-28 23:17:02,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cb709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:02, skipping insertion in model container [2018-11-28 23:17:02,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:02" (1/1) ... [2018-11-28 23:17:02,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:17:02,884 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:17:03,115 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:03,120 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:17:03,142 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:03,160 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:17:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03 WrapperNode [2018-11-28 23:17:03,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:03,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:03,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:17:03,162 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:17:03,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:03,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:17:03,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:17:03,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:17:03,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (1/1) ... [2018-11-28 23:17:03,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:17:03,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:17:03,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:17:03,235 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:17:03,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (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 23:17:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:17:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:17:03,566 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:17:03,566 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 23:17:03,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:03 BoogieIcfgContainer [2018-11-28 23:17:03,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:17:03,567 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:17:03,567 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:17:03,571 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:17:03,571 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:03,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:17:02" (1/3) ... [2018-11-28 23:17:03,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df80f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:03, skipping insertion in model container [2018-11-28 23:17:03,573 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:03,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:03" (2/3) ... [2018-11-28 23:17:03,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df80f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:03, skipping insertion in model container [2018-11-28 23:17:03,573 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:03,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:03" (3/3) ... [2018-11-28 23:17:03,575 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.08_true-termination_true-no-overflow.c [2018-11-28 23:17:03,636 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:17:03,637 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:17:03,637 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:17:03,637 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:17:03,637 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:17:03,638 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:17:03,638 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:17:03,638 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:17:03,638 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:17:03,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:17:03,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:17:03,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:03,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:03,687 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:03,687 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:17:03,687 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:17:03,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:17:03,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:17:03,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:03,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:03,689 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:03,689 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:17:03,698 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~i~0, main_~j~0;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-2true [2018-11-28 23:17:03,699 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 >= 0);main_~j~0 := 0; 3#L12-2true assume !(main_~j~0 <= main_~i~0 - 1); 10#L12-3true main_~i~0 := main_~i~0 - 1; 8#L10-2true [2018-11-28 23:17:03,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:17:03,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:03,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:03,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:03,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:03,812 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 23:17:03,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:03,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:03,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:03,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:03,828 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-28 23:17:03,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:03,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:03,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:03,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:04,061 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 23:17:04,073 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:04,074 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:04,074 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:04,074 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:04,075 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:04,075 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:04,075 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:04,075 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:04,076 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:17:04,076 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:04,076 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:04,102 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 23:17:04,131 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 23:17:04,140 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 23:17:04,452 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 23:17:04,460 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:04,461 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 23:17:04,474 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:04,475 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:04,523 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:04,524 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) [2018-11-28 23:17:04,533 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:04,533 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:04,582 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:04,583 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 [2018-11-28 23:17:04,589 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:04,589 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 23:17:04,618 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:04,618 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:04,644 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:04,646 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:04,646 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:04,646 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:04,646 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:04,646 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:04,646 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:04,647 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:04,647 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:04,647 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:17:04,647 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:04,647 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:04,650 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 23:17:04,658 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 23:17:04,663 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 23:17:04,843 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:04,848 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:04,850 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 23:17:04,851 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:04,852 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:04,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:04,852 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:04,857 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:04,857 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:04,867 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:04,867 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 23:17:04,868 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:04,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:04,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:04,869 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:04,871 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:04,872 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:04,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:04,882 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 23:17:04,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:04,882 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:04,883 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:04,883 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:04,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:04,885 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:04,885 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:04,894 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:04,900 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:17:04,900 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:17:04,902 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:04,903 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:04,903 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:04,903 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2018-11-28 23:17:04,905 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:04,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:05,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:05,156 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 23:17:05,171 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:17:05,173 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:17:05,245 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-28 23:17:05,246 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 23:17:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 23:17:05,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 23:17:05,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:05,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:17:05,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:05,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 23:17:05,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:05,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-28 23:17:05,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:05,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 23:17:05,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:17:05,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:17:05,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 23:17:05,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:05,270 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:17:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 23:17:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-28 23:17:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:17:05,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-28 23:17:05,303 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:17:05,303 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:17:05,304 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:17:05,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-28 23:17:05,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:05,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:05,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:05,305 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:17:05,305 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:05,306 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~i~0, main_~j~0;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L10-2 assume !!(main_~i~0 >= 0);main_~j~0 := 0; 70#L12-2 [2018-11-28 23:17:05,306 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~j~0 <= main_~i~0 - 1);main_~j~0 := 1 + main_~j~0; 70#L12-2 [2018-11-28 23:17:05,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:05,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:17:05,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:05,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:05,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:05,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:05,324 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 23:17:05,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:05,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:05,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:05,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:05,334 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 23:17:05,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:05,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:05,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:05,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:05,386 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:05,386 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:05,386 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:05,386 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:05,386 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:05,387 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:05,387 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:05,387 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:05,387 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:17:05,387 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:05,387 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:05,389 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 23:17:05,394 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 23:17:05,406 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 23:17:05,516 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:05,517 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:05,522 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:05,522 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:05,543 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:05,543 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:05,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:05,548 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 23:17:05,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:05,575 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:05,709 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:05,711 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:05,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:05,711 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:05,711 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:05,711 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:05,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:05,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:05,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:05,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:17:05,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:05,712 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:05,716 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 23:17:05,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:05,731 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 23:17:06,005 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:17:06,082 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:06,083 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:06,083 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 23:17:06,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:06,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:06,084 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:06,085 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:06,087 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:06,087 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:06,091 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:06,092 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 23:17:06,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:06,093 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:06,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:06,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:06,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:06,095 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:06,095 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:06,101 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:06,106 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:17:06,106 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:17:06,107 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:06,107 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:06,107 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:06,107 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 23:17:06,108 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:06,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:06,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:06,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:06,380 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 23:17:06,380 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 23:17:06,381 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 23:17:06,435 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-28 23:17:06,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:06,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 23:17:06,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:06,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:17:06,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:06,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:17:06,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:06,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-28 23:17:06,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:06,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-28 23:17:06,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:17:06,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 23:17:06,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 23:17:06,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:06,443 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 23:17:06,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 23:17:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-28 23:17:06,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:17:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 23:17:06,444 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:17:06,445 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:17:06,445 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:17:06,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-28 23:17:06,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:06,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:06,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:06,447 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 23:17:06,447 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:06,447 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~i~0, main_~j~0;havoc main_~c~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 122#L10-2 assume !!(main_~i~0 >= 0);main_~j~0 := 0; 119#L12-2 assume !(main_~j~0 <= main_~i~0 - 1); 120#L12-3 main_~i~0 := main_~i~0 - 1; 123#L10-2 assume !!(main_~i~0 >= 0);main_~j~0 := 0; 118#L12-2 [2018-11-28 23:17:06,448 INFO L796 eck$LassoCheckResult]: Loop: 118#L12-2 assume !!(main_~j~0 <= main_~i~0 - 1);main_~j~0 := 1 + main_~j~0; 118#L12-2 [2018-11-28 23:17:06,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:06,448 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-28 23:17:06,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:06,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:06,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:06,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:06,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:17:06,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:17:06,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:17:06,529 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:17:06,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:06,529 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-28 23:17:06,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:06,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:06,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:06,531 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:06,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:06,555 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:06,555 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:06,555 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:06,555 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:06,555 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:06,555 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:06,555 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:06,556 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:06,556 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:17:06,556 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:06,556 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:06,557 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 23:17:06,574 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 23:17:06,584 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 23:17:06,719 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:06,719 INFO L412 LassoAnalysis]: Checking for nontermination... 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) [2018-11-28 23:17:06,727 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:06,727 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:06,748 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:06,748 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:06,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:06,754 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:06,778 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:06,778 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:06,914 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:06,917 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:06,917 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:06,917 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:06,917 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:06,917 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:06,917 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:06,918 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:06,918 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:06,918 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.08_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:17:06,918 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:06,918 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:06,920 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 23:17:06,930 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 23:17:06,936 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 23:17:07,005 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:07,006 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:07,006 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 23:17:07,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:07,008 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:07,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:07,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:07,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:07,009 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:07,009 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:07,014 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:07,018 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:17:07,019 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:17:07,019 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:07,019 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:07,020 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:07,020 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-28 23:17:07,020 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:07,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,093 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 23:17:07,093 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 23:17:07,093 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:07,127 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 23:17:07,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:07,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:17:07,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:07,130 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:07,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,194 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 23:17:07,194 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:07,195 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:07,211 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 23:17:07,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:07,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:07,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:17:07,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:07,213 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:07,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:07,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:07,264 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 23:17:07,264 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:07,265 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:07,284 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-11-28 23:17:07,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 23:17:07,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:17:07,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:07,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 23:17:07,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:07,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:17:07,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:07,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-11-28 23:17:07,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:17:07,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-28 23:17:07,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:17:07,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:17:07,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:17:07,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:17:07,291 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:07,291 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:07,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:17:07,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:17:07,297 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 23:17:07,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:17:07,300 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:17:07,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:17:07,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:17:07,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:17:07,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:17:07,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:17:07,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:17:07,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:17:07,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:17:07,301 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:07,301 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:07,301 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:07,301 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:17:07,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:17:07,302 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:17:07,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:17:07,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:17:07 BoogieIcfgContainer [2018-11-28 23:17:07,308 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:17:07,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:17:07,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:17:07,309 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:17:07,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:03" (3/4) ... [2018-11-28 23:17:07,313 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:17:07,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:17:07,314 INFO L168 Benchmark]: Toolchain (without parser) took 4465.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.0 MB in the beginning and 939.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:07,316 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:07,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:07,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:07,318 INFO L168 Benchmark]: Boogie Preprocessor took 28.80 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:07,318 INFO L168 Benchmark]: RCFGBuilder took 332.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:07,319 INFO L168 Benchmark]: BuchiAutomizer took 3741.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.4 MB in the end (delta: 187.6 MB). Peak memory consumption was 187.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:07,320 INFO L168 Benchmark]: Witness Printer took 4.81 ms. Allocated memory is still 1.2 GB. Free memory is still 939.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:07,325 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 42.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.80 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3741.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.4 MB in the end (delta: 187.6 MB). Peak memory consumption was 187.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.81 ms. Allocated memory is still 1.2 GB. Free memory is still 939.4 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, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * j + i and consists of 3 locations. One nondeterministic module has affine ranking function i + -1 * j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 21 SDslu, 6 SDs, 0 SdLazy, 39 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax187 hnf98 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf93 smp96 dnf100 smp100 tf110 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...