./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i --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-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i -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 1d83513923275fb998d84bf280079335d55bfc99 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:21:06,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:21:06,960 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:21:06,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:21:06,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:21:06,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:21:06,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:21:06,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:21:06,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:21:06,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:21:06,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:21:06,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:21:06,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:21:06,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:21:06,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:21:06,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:21:06,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:21:06,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:21:06,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:21:06,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:21:06,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:21:06,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:21:06,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:21:06,999 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:21:06,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:21:07,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:21:07,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:21:07,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:21:07,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:21:07,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:21:07,005 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:21:07,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:21:07,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:21:07,006 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:21:07,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:21:07,008 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:21:07,008 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:21:07,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:21:07,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:21:07,040 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:21:07,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:21:07,042 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:21:07,042 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:21:07,042 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:21:07,043 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:21:07,043 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:21:07,043 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:21:07,043 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:21:07,043 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:21:07,043 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:21:07,044 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:21:07,044 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:21:07,045 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:21:07,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:21:07,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:21:07,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:21:07,046 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:21:07,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:21:07,048 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:21:07,048 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:21:07,049 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:21:07,049 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 -> 1d83513923275fb998d84bf280079335d55bfc99 [2018-11-28 23:21:07,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:21:07,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:21:07,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:21:07,129 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:21:07,130 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:21:07,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 23:21:07,198 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e32d4ff92/7956566a58cc464c90baf1a4bc606d11/FLAG93b59a85f [2018-11-28 23:21:07,705 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:21:07,706 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 23:21:07,723 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e32d4ff92/7956566a58cc464c90baf1a4bc606d11/FLAG93b59a85f [2018-11-28 23:21:08,012 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e32d4ff92/7956566a58cc464c90baf1a4bc606d11 [2018-11-28 23:21:08,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:21:08,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:21:08,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:21:08,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:21:08,023 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:21:08,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ca5205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08, skipping insertion in model container [2018-11-28 23:21:08,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:21:08,082 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:21:08,393 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:21:08,406 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:21:08,451 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:21:08,511 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:21:08,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08 WrapperNode [2018-11-28 23:21:08,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:21:08,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:21:08,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:21:08,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:21:08,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:21:08,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:21:08,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:21:08,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:21:08,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (1/1) ... [2018-11-28 23:21:08,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:21:08,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:21:08,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:21:08,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:21:08,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (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 23:21:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:21:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:21:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:21:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:21:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:21:09,146 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:21:09,146 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 23:21:09,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:09 BoogieIcfgContainer [2018-11-28 23:21:09,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:21:09,148 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:21:09,148 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:21:09,152 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:21:09,152 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:09,153 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:21:08" (1/3) ... [2018-11-28 23:21:09,154 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1af18645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:21:09, skipping insertion in model container [2018-11-28 23:21:09,154 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:09,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:08" (2/3) ... [2018-11-28 23:21:09,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1af18645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:21:09, skipping insertion in model container [2018-11-28 23:21:09,155 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:09,155 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:09" (3/3) ... [2018-11-28 23:21:09,157 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca_true-termination.c.i [2018-11-28 23:21:09,217 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:21:09,218 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:21:09,218 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:21:09,219 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:21:09,219 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:21:09,219 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:21:09,219 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:21:09,219 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:21:09,220 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:21:09,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 23:21:09,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:21:09,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:21:09,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:21:09,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:21:09,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:21:09,264 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:21:09,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 23:21:09,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:21:09,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:21:09,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:21:09,266 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:21:09,266 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:21:09,276 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 6#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 7#L564true assume !(main_~length~0 < 1); 10#L564-2true assume !(main_~n~0 < 1); 4#L567-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemrchr_#in~s.base, cmemrchr_#in~s.offset, cmemrchr_#in~c, cmemrchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemrchr_#res.base, cmemrchr_#res.offset;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, cmemrchr_#t~mem4, cmemrchr_#t~pre2, cmemrchr_~s.base, cmemrchr_~s.offset, cmemrchr_~c, cmemrchr_~n, cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset;cmemrchr_~s.base, cmemrchr_~s.offset := cmemrchr_#in~s.base, cmemrchr_#in~s.offset;cmemrchr_~c := cmemrchr_#in~c;cmemrchr_~n := cmemrchr_#in~n;havoc cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset; 11#L551true assume 0 != cmemrchr_~n % 4294967296;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~s.base, cmemrchr_~s.offset + cmemrchr_~n % 4294967296; 17#L553-4true [2018-11-28 23:21:09,276 INFO L796 eck$LassoCheckResult]: Loop: 17#L553-4true cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;call cmemrchr_#t~mem4 := read~int(cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, 1); 5#L554true assume !(cmemrchr_#t~mem4 % 256 == cmemrchr_~c % 256);havoc cmemrchr_#t~mem4;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset; 9#L553-1true cmemrchr_#t~pre2 := cmemrchr_~n - 1;cmemrchr_~n := cmemrchr_~n - 1; 12#L553-2true assume !!(0 != cmemrchr_#t~pre2 % 4294967296);havoc cmemrchr_#t~pre2; 17#L553-4true [2018-11-28 23:21:09,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:09,283 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2018-11-28 23:21:09,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:09,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:09,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:09,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:09,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2018-11-28 23:21:09,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:09,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:09,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:09,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:09,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2018-11-28 23:21:09,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:09,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:09,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:09,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:09,730 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-11-28 23:21:09,842 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-28 23:21:10,139 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-28 23:21:10,381 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-28 23:21:10,411 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:21:10,415 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:21:10,415 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:21:10,416 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:21:10,416 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:21:10,416 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:21:10,416 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:21:10,416 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:21:10,417 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-28 23:21:10,417 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:21:10,417 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:21:10,455 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 23:21:10,492 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 23:21:10,527 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 23:21:10,552 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 23:21:10,584 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 23:21:10,612 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 23:21:10,643 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 23:21:10,683 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 23:21:10,717 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 23:21:10,726 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 23:21:10,732 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 23:21:10,737 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 23:21:11,205 WARN L180 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-11-28 23:21:11,507 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-11-28 23:21:11,508 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 23:21:11,512 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 23:21:11,513 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 23:21:11,539 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 23:21:11,541 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 23:21:11,575 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 23:21:11,577 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 23:21:11,870 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2018-11-28 23:21:12,146 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2018-11-28 23:21:12,601 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 23:21:12,750 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:21:12,758 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:21:12,761 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 23:21:12,763 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,764 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,764 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,765 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,765 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,768 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,771 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,772 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 23:21:12,773 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,774 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,774 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,774 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,774 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,775 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,776 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,777 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 23:21:12,779 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,779 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,779 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,779 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,780 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,780 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,782 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 23:21:12,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,785 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,787 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 23:21:12,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,789 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,789 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,790 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,790 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,792 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,792 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 23:21:12,793 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,794 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,795 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,796 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,797 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,797 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 23:21:12,798 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,799 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,799 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,799 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:12,803 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:12,807 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,808 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 23:21:12,808 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,809 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,809 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,809 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,814 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:12,814 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:12,823 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,824 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 23:21:12,827 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,827 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,828 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,828 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,828 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,828 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,829 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,829 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,830 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 23:21:12,830 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,831 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,831 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,831 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,833 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:12,833 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:12,838 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,839 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 23:21:12,839 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,839 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:12,840 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,841 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,841 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:12,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:12,849 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:12,849 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 23:21:12,850 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:12,850 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:12,851 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:12,853 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:12,861 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:12,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:12,978 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:21:13,022 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:21:13,022 INFO L444 ModelExtractionUtils]: 26 out of 34 variables were initially zero. Simplification set additionally 6 variables to zero. [2018-11-28 23:21:13,025 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:21:13,027 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 23:21:13,035 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:21:13,036 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemrchr_~cp~0.offset) = 1*ULTIMATE.start_cmemrchr_~cp~0.offset Supporting invariants [] [2018-11-28 23:21:13,128 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2018-11-28 23:21:13,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:21:13,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:21:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:21:13,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:21:13,361 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 23:21:13,376 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 23:21:13,378 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-28 23:21:13,423 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 40 transitions. Complement of second has 5 states. [2018-11-28 23:21:13,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:21:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:21:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-28 23:21:13,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 23:21:13,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:13,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-28 23:21:13,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:13,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-28 23:21:13,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:13,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-11-28 23:21:13,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:21:13,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-11-28 23:21:13,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:21:13,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:21:13,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:21:13,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:21:13,444 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:13,444 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:13,444 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:13,444 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:21:13,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:21:13,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:21:13,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:21:13,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:21:13 BoogieIcfgContainer [2018-11-28 23:21:13,451 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:21:13,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:21:13,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:21:13,452 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:21:13,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:09" (3/4) ... [2018-11-28 23:21:13,457 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:21:13,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:21:13,458 INFO L168 Benchmark]: Toolchain (without parser) took 5442.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 867.1 MB in the end (delta: 85.6 MB). Peak memory consumption was 221.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:13,460 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:21:13,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 931.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:13,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:13,463 INFO L168 Benchmark]: Boogie Preprocessor took 38.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:21:13,463 INFO L168 Benchmark]: RCFGBuilder took 454.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:13,464 INFO L168 Benchmark]: BuchiAutomizer took 4303.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 867.1 MB in the end (delta: 237.0 MB). Peak memory consumption was 237.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:13,466 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 867.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:21:13,471 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 493.71 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 931.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 140.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 454.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4303.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 867.1 MB in the end (delta: 237.0 MB). Peak memory consumption was 237.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 867.1 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function cp and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 21 SDslu, 8 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax112 hnf98 lsp82 ukn97 mio100 lsp57 div208 bol100 ite100 ukn100 eq167 hnf63 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...