./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/loops/sum01-2.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 7e441b408705ca8366624dd497de58641bec51a6 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:04:21,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:04:21,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:04:21,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:04:21,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:04:21,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:04:21,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:04:21,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:04:21,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:04:21,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:04:21,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:04:21,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:04:21,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:04:21,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:04:21,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:04:21,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:04:21,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:04:21,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:04:21,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:04:21,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:04:21,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:04:21,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:04:21,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:04:21,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:04:21,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:04:21,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:04:21,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:04:21,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:04:21,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:04:21,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:04:21,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:04:21,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:04:21,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:04:21,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:04:21,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:04:21,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:04:21,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:04:21,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:04:21,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:04:21,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:04:21,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:04:21,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:04:21,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:04:21,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:04:21,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:04:21,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:04:21,712 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:04:21,713 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:04:21,713 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:04:21,713 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:04:21,713 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:04:21,714 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:04:21,714 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:04:21,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:04:21,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:04:21,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:04:21,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:04:21,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:04:21,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:04:21,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:04:21,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:04:21,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:04:21,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:04:21,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:04:21,717 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:04:21,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:04:21,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:04:21,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:04:21,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:04:21,718 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:04:21,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:04:21,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:04:21,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:04:21,719 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:04:21,720 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:04:21,720 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 -> 7e441b408705ca8366624dd497de58641bec51a6 [2020-10-20 07:04:21,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:04:21,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:04:21,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:04:21,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:04:21,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:04:21,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01-2.i [2020-10-20 07:04:22,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067dda9c2/3542da26fb9c4009868811b79b59346f/FLAG138642ec8 [2020-10-20 07:04:22,517 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:04:22,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01-2.i [2020-10-20 07:04:22,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067dda9c2/3542da26fb9c4009868811b79b59346f/FLAG138642ec8 [2020-10-20 07:04:22,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067dda9c2/3542da26fb9c4009868811b79b59346f [2020-10-20 07:04:22,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:04:22,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:04:22,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:22,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:04:22,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:04:22,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:22" (1/1) ... [2020-10-20 07:04:22,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9e54d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:22, skipping insertion in model container [2020-10-20 07:04:22,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:22" (1/1) ... [2020-10-20 07:04:22,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:04:23,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:04:23,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:23,270 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:04:23,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:23,298 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:04:23,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23 WrapperNode [2020-10-20 07:04:23,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:23,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:23,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:04:23,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:04:23,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:23,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:04:23,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:04:23,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:04:23,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (1/1) ... [2020-10-20 07:04:23,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:04:23,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:04:23,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:04:23,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:04:23,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (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 [2020-10-20 07:04:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:04:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:04:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:04:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:04:23,628 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:04:23,629 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 07:04:23,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:23 BoogieIcfgContainer [2020-10-20 07:04:23,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:04:23,632 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:04:23,632 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:04:23,637 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:04:23,638 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:23,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:04:22" (1/3) ... [2020-10-20 07:04:23,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75177dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:23, skipping insertion in model container [2020-10-20 07:04:23,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:23,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:23" (2/3) ... [2020-10-20 07:04:23,641 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75177dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:23, skipping insertion in model container [2020-10-20 07:04:23,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:23,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:23" (3/3) ... [2020-10-20 07:04:23,644 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum01-2.i [2020-10-20 07:04:23,713 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:04:23,714 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:04:23,714 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:04:23,715 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:04:23,715 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:04:23,716 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:04:23,716 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:04:23,716 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:04:23,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 07:04:23,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:23,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:23,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:23,773 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:04:23,774 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:23,774 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:04:23,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 07:04:23,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:23,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:23,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:23,778 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:04:23,778 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:23,787 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 5#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~sn~0 := 0; 13#L24true assume !!(main_~n~0 < 1000 && main_~n~0 >= -1000);main_~i~0 := 1; 9#L25-3true [2020-10-20 07:04:23,788 INFO L796 eck$LassoCheckResult]: Loop: 9#L25-3true assume !!(main_~i~0 <= main_~n~0);main_~sn~0 := 2 + main_~sn~0; 11#L25-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 9#L25-3true [2020-10-20 07:04:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:23,795 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-20 07:04:23,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:23,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055693798] [2020-10-20 07:04:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:23,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:23,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:23,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:23,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2020-10-20 07:04:23,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:23,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934621625] [2020-10-20 07:04:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:23,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:23,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:23,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:23,964 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2020-10-20 07:04:23,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:23,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357440720] [2020-10-20 07:04:23,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:23,983 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:24,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:24,011 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:24,070 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:24,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:24,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:24,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:24,072 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:24,072 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,072 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:24,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:24,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-2.i_Iteration1_Loop [2020-10-20 07:04:24,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:24,073 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:24,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,178 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:24,178 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:24,196 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:24,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:24,222 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:24,252 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 [2020-10-20 07:04:24,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:24,280 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:24,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:24,436 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:04:24,439 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:24,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:24,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:24,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:24,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:24,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:24,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:24,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-2.i_Iteration1_Loop [2020-10-20 07:04:24,440 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:24,440 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:24,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:24,516 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:24,523 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 07:04:24,538 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 [2020-10-20 07:04:24,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:24,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:24,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:24,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:24,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:24,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:24,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,560 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:24,598 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 [2020-10-20 07:04:24,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:24,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:24,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:24,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:24,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:24,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:24,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:24,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:24,620 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:04:24,621 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 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 [2020-10-20 07:04:24,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:24,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:04:24,631 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:24,631 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-10-20 07:04:24,655 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:04:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:24,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:04:24,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:24,727 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:24,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:24,759 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 [2020-10-20 07:04:24,761 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-10-20 07:04:24,821 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 32 states and 40 transitions. Complement of second has 7 states. [2020-10-20 07:04:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2020-10-20 07:04:24,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-20 07:04:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 07:04:24,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:24,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-20 07:04:24,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:24,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2020-10-20 07:04:24,835 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:24,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-10-20 07:04:24,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:04:24,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:04:24,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:04:24,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:24,841 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:24,841 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:24,841 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:04:24,842 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:04:24,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:04:24,842 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:04:24,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:04:24,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:04:24 BoogieIcfgContainer [2020-10-20 07:04:24,850 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:04:24,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:04:24,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:04:24,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:04:24,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:23" (3/4) ... [2020-10-20 07:04:24,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:04:24,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:04:24,858 INFO L168 Benchmark]: Toolchain (without parser) took 1901.21 ms. Allocated memory was 36.7 MB in the beginning and 48.2 MB in the end (delta: 11.5 MB). Free memory was 18.6 MB in the beginning and 18.3 MB in the end (delta: 220.2 kB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,860 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 34.6 MB. Free memory was 11.2 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.64 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 17.7 MB in the beginning and 26.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 44.6 MB. Free memory was 26.5 MB in the beginning and 24.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,862 INFO L168 Benchmark]: Boogie Preprocessor took 21.90 ms. Allocated memory is still 44.6 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,863 INFO L168 Benchmark]: RCFGBuilder took 272.23 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 23.5 MB in the beginning and 23.8 MB in the end (delta: -327.1 kB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,865 INFO L168 Benchmark]: BuchiAutomizer took 1217.86 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 23.8 MB in the beginning and 18.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,865 INFO L168 Benchmark]: Witness Printer took 5.31 ms. Allocated memory is still 48.2 MB. Free memory was 18.7 MB in the beginning and 18.3 MB in the end (delta: 332.7 kB). Peak memory consumption was 332.7 kB. Max. memory is 14.3 GB. [2020-10-20 07:04:24,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 34.6 MB. Free memory was 11.2 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 335.64 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 17.7 MB in the beginning and 26.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 44.6 MB. Free memory was 26.5 MB in the beginning and 24.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 21.90 ms. Allocated memory is still 44.6 MB. Free memory was 24.9 MB in the beginning and 23.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 272.23 ms. Allocated memory was 44.6 MB in the beginning and 46.1 MB in the end (delta: 1.6 MB). Free memory was 23.5 MB in the beginning and 23.8 MB in the end (delta: -327.1 kB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 1217.86 ms. Allocated memory was 46.1 MB in the beginning and 48.2 MB in the end (delta: 2.1 MB). Free memory was 23.8 MB in the beginning and 18.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. * Witness Printer took 5.31 ms. Allocated memory is still 48.2 MB. Free memory was 18.7 MB in the beginning and 18.3 MB in the end (delta: 332.7 kB). Peak memory consumption was 332.7 kB. Max. memory is 14.3 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 2 * n + -2 * i + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: 11 SDtfs, 12 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...