./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-acceleration/array_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/loop-acceleration/array_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cf45fad85d859bd49993135d653eb18d378c433 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:00:22,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:00:22,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:00:22,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:00:22,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:00:22,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:00:22,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:00:22,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:00:22,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:00:22,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:00:22,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:00:22,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:00:22,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:00:22,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:00:22,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:00:22,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:00:22,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:00:22,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:00:22,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:00:22,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:00:22,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:00:22,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:00:22,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:00:22,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:00:22,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:00:22,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:00:22,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:00:22,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:00:22,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:00:22,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:00:22,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:00:22,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:00:22,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:00:22,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:00:22,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:00:22,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:00:22,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:00:22,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:00:22,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:00:22,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:00:22,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:00:22,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:00:23,002 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:00:23,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:00:23,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:00:23,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:00:23,005 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:00:23,005 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:00:23,006 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:00:23,006 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:00:23,006 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:00:23,006 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:00:23,007 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:00:23,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:00:23,007 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:00:23,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:00:23,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:00:23,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:00:23,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:00:23,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:00:23,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:00:23,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:00:23,009 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:00:23,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:00:23,009 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:00:23,009 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:00:23,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:00:23,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:00:23,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:00:23,010 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:00:23,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:00:23,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:00:23,011 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:00:23,012 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:00:23,012 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cf45fad85d859bd49993135d653eb18d378c433 [2019-11-19 20:00:23,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:00:23,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:00:23,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:00:23,325 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:00:23,326 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:00:23,326 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-11-19 20:00:23,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3b6242f/0c07fa75819747bb9e7f79fcf7940f58/FLAG15595752c [2019-11-19 20:00:23,868 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:00:23,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-11-19 20:00:23,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3b6242f/0c07fa75819747bb9e7f79fcf7940f58/FLAG15595752c [2019-11-19 20:00:24,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3b6242f/0c07fa75819747bb9e7f79fcf7940f58 [2019-11-19 20:00:24,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:00:24,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:00:24,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:00:24,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:00:24,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:00:24,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2d9837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24, skipping insertion in model container [2019-11-19 20:00:24,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:00:24,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:00:24,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:00:24,500 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:00:24,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:00:24,540 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:00:24,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24 WrapperNode [2019-11-19 20:00:24,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:00:24,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:00:24,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:00:24,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:00:24,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:00:24,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:00:24,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:00:24,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:00:24,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2019-11-19 20:00:24,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:00:24,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:00:24,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:00:24,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:00:24,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:00:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:00:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:00:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:00:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:00:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:00:24,935 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:00:24,935 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 20:00:24,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:24 BoogieIcfgContainer [2019-11-19 20:00:24,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:00:24,937 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:00:24,937 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:00:24,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:00:24,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:00:24,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:00:24" (1/3) ... [2019-11-19 20:00:24,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eed2d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:00:24, skipping insertion in model container [2019-11-19 20:00:24,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:00:24,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (2/3) ... [2019-11-19 20:00:24,943 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eed2d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:00:24, skipping insertion in model container [2019-11-19 20:00:24,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:00:24,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:24" (3/3) ... [2019-11-19 20:00:24,945 INFO L371 chiAutomizerObserver]: Analyzing ICFG array_2-2.i [2019-11-19 20:00:24,992 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:00:24,992 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:00:24,992 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:00:24,993 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:00:24,993 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:00:24,993 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:00:24,993 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:00:24,993 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:00:25,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 20:00:25,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 20:00:25,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:00:25,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:00:25,032 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:00:25,033 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:00:25,033 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:00:25,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 20:00:25,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 20:00:25,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:00:25,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:00:25,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 20:00:25,035 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:00:25,041 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~mem1, main_#t~post0, main_#t~mem2, main_#t~mem3, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 4#L13-3true [2019-11-19 20:00:25,041 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true assume !!(main_~i~0 < 2048);call main_#t~mem1 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem1;havoc main_#t~mem1;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 6#L13-2true main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 4#L13-3true [2019-11-19 20:00:25,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:00:25,047 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-19 20:00:25,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:00:25,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461183864] [2019-11-19 20:00:25,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:00:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,170 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:00:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:00:25,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-11-19 20:00:25,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:00:25,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075965800] [2019-11-19 20:00:25,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:00:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:00:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:00:25,196 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-11-19 20:00:25,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:00:25,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840690319] [2019-11-19 20:00:25,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:00:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:00:25,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:00:25,422 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-19 20:00:25,612 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:00:25,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:00:25,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:00:25,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:00:25,613 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:00:25,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:25,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:00:25,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:00:25,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2.i_Iteration1_Lasso [2019-11-19 20:00:25,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:00:25,615 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:00:25,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:25,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:00:26,229 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:00:26,235 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:00:26,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:00:26,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:00:26,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:00:26,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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) [2019-11-19 20:00:26,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:00:26,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:00:26,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:00:26,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:00:26,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:00:26,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,401 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:00:26,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,409 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:00:26,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:00:26,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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) [2019-11-19 20:00:26,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:00:26,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:00:26,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:00:26,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:00:26,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:00:26,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:00:26,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:00:26,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:00:26,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:00:26,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:00:26,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:00:26,513 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:00:26,584 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2019-11-19 20:00:26,585 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:00:26,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:00:26,597 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:00:26,597 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:00:26,598 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 Supporting invariants [] [2019-11-19 20:00:26,620 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-19 20:00:26,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:00:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:00:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:00:26,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 20:00:26,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:00:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:00:26,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:00:26,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:00:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:00:26,758 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 20:00:26,760 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-19 20:00:26,831 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 8 states. [2019-11-19 20:00:26,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:00:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 20:00:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-19 20:00:26,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-19 20:00:26,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:00:26,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-19 20:00:26,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:00:26,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-19 20:00:26,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:00:26,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2019-11-19 20:00:26,854 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:00:26,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-11-19 20:00:26,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 20:00:26,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 20:00:26,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 20:00:26,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:00:26,860 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:00:26,860 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:00:26,860 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:00:26,860 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:00:26,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 20:00:26,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:00:26,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 20:00:26,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:00:26 BoogieIcfgContainer [2019-11-19 20:00:26,869 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:00:26,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:00:26,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:00:26,870 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:00:26,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:24" (3/4) ... [2019-11-19 20:00:26,875 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 20:00:26,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:00:26,880 INFO L168 Benchmark]: Toolchain (without parser) took 2619.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.7 MB in the beginning and 905.5 MB in the end (delta: 56.2 MB). Peak memory consumption was 199.3 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,881 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:00:26,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,885 INFO L168 Benchmark]: Boogie Preprocessor took 39.26 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,891 INFO L168 Benchmark]: RCFGBuilder took 262.41 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,892 INFO L168 Benchmark]: BuchiAutomizer took 1932.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.5 MB in the end (delta: 202.7 MB). Peak memory consumption was 202.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:00:26,894 INFO L168 Benchmark]: Witness Printer took 6.80 ms. Allocated memory is still 1.2 GB. Free memory is still 905.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:00:26,906 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.26 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 262.41 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1932.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 905.5 MB in the end (delta: 202.7 MB). Peak memory consumption was 202.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.80 ms. Allocated memory is still 1.2 GB. Free memory is still 905.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -8 * i + 4095 * unknown-#length-unknown[A] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 4 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital149 mio100 ax100 hnf100 lsp95 ukn63 mio100 lsp64 div100 bol100 ite100 ukn100 eq164 hnf76 smp100 dnf100 smp100 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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...