./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 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/loops/sum01-1.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 7bde49acbd83d331d6c1a7f9b5b50ee14f089f95 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:11:10,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:11:10,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:11:10,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:11:10,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:11:10,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:11:10,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:11:10,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:11:10,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:11:10,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:11:10,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:11:10,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:11:10,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:11:10,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:11:10,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:11:10,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:11:10,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:11:10,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:11:10,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:11:10,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:11:10,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:11:10,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:11:10,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:11:10,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:11:10,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:11:10,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:11:10,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:11:10,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:11:10,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:11:10,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:11:10,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:11:10,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:11:10,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:11:10,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:11:10,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:11:10,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:11:10,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:11:10,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:11:10,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:11:10,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:11:10,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:11:10,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:11:10,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:11:10,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:11:10,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:11:10,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:11:10,908 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:11:10,908 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:11:10,908 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:11:10,908 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:11:10,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:11:10,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:11:10,912 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:11:10,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:11:10,913 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:11:10,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:11:10,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:11:10,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:11:10,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:11:10,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:11:10,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:11:10,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:11:10,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:11:10,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:11:10,918 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:11:10,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:11:10,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:11:10,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:11:10,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:11:10,919 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:11:10,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:11:10,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:11:10,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:11:10,921 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:11:10,922 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:11:10,923 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 -> 7bde49acbd83d331d6c1a7f9b5b50ee14f089f95 [2020-10-19 19:11:11,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:11:11,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:11:11,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:11:11,277 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:11:11,278 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:11:11,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01-1.i [2020-10-19 19:11:11,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0ae810/9ee7d13a93c942f9b5605857a7b64cf4/FLAGc2b9cf959 [2020-10-19 19:11:11,850 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:11:11,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01-1.i [2020-10-19 19:11:11,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0ae810/9ee7d13a93c942f9b5605857a7b64cf4/FLAGc2b9cf959 [2020-10-19 19:11:12,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b0ae810/9ee7d13a93c942f9b5605857a7b64cf4 [2020-10-19 19:11:12,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:11:12,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:11:12,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:12,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:11:12,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:11:12,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3875792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12, skipping insertion in model container [2020-10-19 19:11:12,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:11:12,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:11:12,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:12,487 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:11:12,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:12,522 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:11:12,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12 WrapperNode [2020-10-19 19:11:12,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:12,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:12,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:11:12,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:11:12,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:12,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:11:12,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:11:12,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:11:12,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (1/1) ... [2020-10-19 19:11:12,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:11:12,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:11:12,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:11:12,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:11:12,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (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 [2020-10-19 19:11:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:11:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:11:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:11:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:11:12,928 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:11:12,929 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 19:11:12,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:12 BoogieIcfgContainer [2020-10-19 19:11:12,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:11:12,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:11:12,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:11:12,936 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:11:12,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:12,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:11:12" (1/3) ... [2020-10-19 19:11:12,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73552039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:12, skipping insertion in model container [2020-10-19 19:11:12,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:12,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:12" (2/3) ... [2020-10-19 19:11:12,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73552039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:12, skipping insertion in model container [2020-10-19 19:11:12,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:12,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:12" (3/3) ... [2020-10-19 19:11:12,944 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum01-1.i [2020-10-19 19:11:13,026 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:11:13,026 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:11:13,026 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:11:13,027 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:11:13,027 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:11:13,027 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:11:13,027 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:11:13,027 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:11:13,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-19 19:11:13,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 19:11:13,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:13,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:13,087 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:11:13,087 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:13,088 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:11:13,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-19 19:11:13,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 19:11:13,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:13,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:13,090 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:11:13,090 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:13,097 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 6#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 8#L24-3true [2020-10-19 19:11:13,097 INFO L796 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0 <= main_~n~0); 15#L25true assume main_~i~0 < 10;main_~sn~0 := 2 + main_~sn~0; 10#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 8#L24-3true [2020-10-19 19:11:13,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:13,103 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:11:13,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:13,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528039347] [2020-10-19 19:11:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:13,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2020-10-19 19:11:13,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:13,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484845498] [2020-10-19 19:11:13,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,270 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:13,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:13,272 INFO L82 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2020-10-19 19:11:13,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:13,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478186000] [2020-10-19 19:11:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:13,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:13,330 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:13,394 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:13,395 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:13,395 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:13,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:13,396 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:11:13,396 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:13,396 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:13,396 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:13,396 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2020-10-19 19:11:13,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:13,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:13,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,515 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:13,516 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 [2020-10-19 19:11:13,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:13,529 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:13,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:11:13,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:13,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:13,580 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 [2020-10-19 19:11:13,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:13,606 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 [2020-10-19 19:11:13,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:11:13,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:13,673 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:11:13,678 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:13,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:13,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:13,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:13,679 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:13,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:13,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:13,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:13,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2020-10-19 19:11:13,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:13,682 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:13,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:13,772 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:13,778 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) [2020-10-19 19:11:13,788 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 [2020-10-19 19:11:13,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:13,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:13,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:13,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:13,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:13,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:13,797 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 [2020-10-19 19:11:13,802 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 [2020-10-19 19:11:13,846 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 [2020-10-19 19:11:13,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:13,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:13,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:13,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:13,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:13,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:13,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:13,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:13,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:11:13,859 INFO L444 ModelExtractionUtils]: 1 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) [2020-10-19 19:11:13,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:13,875 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:11:13,876 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:13,877 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:13,917 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:11:13,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:13,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:11:13,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:13,987 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:13,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:14,025 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 [2020-10-19 19:11:14,027 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2020-10-19 19:11:14,093 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 36 states and 50 transitions. Complement of second has 7 states. [2020-10-19 19:11:14,094 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 [2020-10-19 19:11:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-19 19:11:14,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2020-10-19 19:11:14,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-19 19:11:14,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2020-10-19 19:11:14,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2020-10-19 19:11:14,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 19:11:14,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 12 states and 15 transitions. [2020-10-19 19:11:14,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 19:11:14,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 19:11:14,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-10-19 19:11:14,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:14,119 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-19 19:11:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-10-19 19:11:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-19 19:11:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 19:11:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-10-19 19:11:14,149 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-19 19:11:14,150 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-19 19:11:14,150 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:11:14,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-10-19 19:11:14,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 19:11:14,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:14,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:14,152 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:11:14,152 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:14,153 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 91#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 92#L24-3 assume !!(main_~i~0 <= main_~n~0); 94#L25 [2020-10-19 19:11:14,153 INFO L796 eck$LassoCheckResult]: Loop: 94#L25 assume !(main_~i~0 < 10); 98#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 93#L24-3 assume !!(main_~i~0 <= main_~n~0); 94#L25 [2020-10-19 19:11:14,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:14,154 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2020-10-19 19:11:14,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:14,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612761361] [2020-10-19 19:11:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:14,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:14,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:14,197 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:14,198 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2020-10-19 19:11:14,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:14,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300529902] [2020-10-19 19:11:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:14,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:14,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:14,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:14,210 INFO L82 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2020-10-19 19:11:14,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:14,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278188133] [2020-10-19 19:11:14,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:14,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278188133] [2020-10-19 19:11:14,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:14,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:11:14,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47297847] [2020-10-19 19:11:14,317 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:14,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:14,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:14,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:14,318 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:11:14,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:14,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:14,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2020-10-19 19:11:14,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:14,319 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:14,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:14,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:14,364 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:14,364 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:14,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:14,376 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:14,376 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:14,411 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:11:14,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:14,517 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:11:14,519 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:14,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:14,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:14,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:14,519 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:14,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:14,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:14,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2020-10-19 19:11:14,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:14,520 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:14,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:14,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:14,566 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:14,566 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:11:14,577 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 [2020-10-19 19:11:14,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:14,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:14,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:14,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:14,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:14,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:14,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,595 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:14,644 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 [2020-10-19 19:11:14,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:14,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:14,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:14,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:14,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:14,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:14,654 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:14,661 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:11:14,662 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:14,664 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:14,665 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:11:14,665 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:14,665 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 19:11:14,686 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:11:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:14,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:11:14,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:14,724 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:14,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:14,768 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 [2020-10-19 19:11:14,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 19:11:14,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 18 states and 22 transitions. Complement of second has 6 states. [2020-10-19 19:11:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 19:11:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-10-19 19:11:14,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2020-10-19 19:11:14,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-19 19:11:14,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2020-10-19 19:11:14,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:14,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2020-10-19 19:11:14,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:14,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-10-19 19:11:14,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:11:14,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:11:14,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:11:14,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:14,803 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:14,803 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:14,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:14,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:11:14,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:11:14,809 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-19 19:11:14,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:14,813 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-19 19:11:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 19:11:14,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-19 19:11:14,814 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:14,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 19:11:14,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:11:14,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:11:14,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:11:14,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:14,816 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:14,816 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:14,816 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:14,816 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:11:14,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:11:14,817 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:14,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:11:14,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:11:14 BoogieIcfgContainer [2020-10-19 19:11:14,825 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:11:14,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:11:14,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:11:14,826 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:11:14,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:12" (3/4) ... [2020-10-19 19:11:14,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:11:14,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:11:14,835 INFO L168 Benchmark]: Toolchain (without parser) took 2608.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 953.3 MB in the beginning and 941.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:14,836 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:14,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:14,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:14,840 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 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. [2020-10-19 19:11:14,841 INFO L168 Benchmark]: RCFGBuilder took 284.82 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:14,842 INFO L168 Benchmark]: BuchiAutomizer took 1893.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.6 MB in the end (delta: 158.1 MB). Peak memory consumption was 158.1 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:14,842 INFO L168 Benchmark]: Witness Printer took 6.48 ms. Allocated memory is still 1.2 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:14,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 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 97.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.96 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 284.82 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1893.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.6 MB in the end (delta: 158.1 MB). Peak memory consumption was 158.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.48 ms. Allocated memory is still 1.2 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 19 and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 14 SDslu, 12 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf96 lsp86 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 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...