./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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/array-industry-pattern/array_shadowinit.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 b03f52438c8a4febc4c57e40202386008cb3a895 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:05:11,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:05:11,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:05:11,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:05:11,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:05:11,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:05:11,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:05:11,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:05:11,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:05:11,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:05:11,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:05:11,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:05:11,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:05:11,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:05:11,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:05:11,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:05:11,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:05:11,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:05:11,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:05:11,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:05:11,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:05:11,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:05:11,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:05:11,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:05:11,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:05:11,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:05:11,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:05:11,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:05:11,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:05:11,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:05:11,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:05:11,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:05:11,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:05:11,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:05:11,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:05:11,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:05:11,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:05:11,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:05:11,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:05:11,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:05:11,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:05:11,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:05:11,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:05:11,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:05:11,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:05:11,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:05:11,672 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:05:11,673 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:05:11,675 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:05:11,676 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:05:11,676 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:05:11,676 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:05:11,676 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:05:11,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:05:11,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:05:11,677 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:05:11,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:05:11,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:05:11,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:05:11,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:05:11,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:05:11,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:05:11,679 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:05:11,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:05:11,680 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:05:11,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:05:11,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:05:11,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:05:11,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:05:11,681 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:05:11,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:05:11,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:05:11,682 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:05:11,684 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:05:11,684 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 -> b03f52438c8a4febc4c57e40202386008cb3a895 [2019-11-28 03:05:11,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:05:12,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:05:12,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:05:12,021 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:05:12,021 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:05:12,022 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2019-11-28 03:05:12,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb9f1345/218ed23da56a479b93e2acfebd30060a/FLAG3018306fc [2019-11-28 03:05:12,575 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:05:12,576 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2019-11-28 03:05:12,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb9f1345/218ed23da56a479b93e2acfebd30060a/FLAG3018306fc [2019-11-28 03:05:13,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb9f1345/218ed23da56a479b93e2acfebd30060a [2019-11-28 03:05:13,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:05:13,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:05:13,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:05:13,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:05:13,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:05:13,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e30af7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13, skipping insertion in model container [2019-11-28 03:05:13,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:05:13,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:05:13,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:05:13,287 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:05:13,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:05:13,338 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:05:13,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13 WrapperNode [2019-11-28 03:05:13,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:05:13,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:05:13,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:05:13,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:05:13,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:05:13,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:05:13,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:05:13,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:05:13,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... [2019-11-28 03:05:13,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:05:13,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:05:13,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:05:13,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:05:13,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:05:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:05:13,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:05:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:05:13,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:05:13,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:05:13,750 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:05:13,751 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 03:05:13,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:13 BoogieIcfgContainer [2019-11-28 03:05:13,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:05:13,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:05:13,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:05:13,768 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:05:13,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:13,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:05:13" (1/3) ... [2019-11-28 03:05:13,777 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79cbe925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:05:13, skipping insertion in model container [2019-11-28 03:05:13,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:13,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:13" (2/3) ... [2019-11-28 03:05:13,778 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79cbe925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:05:13, skipping insertion in model container [2019-11-28 03:05:13,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:05:13,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:13" (3/3) ... [2019-11-28 03:05:13,784 INFO L371 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2019-11-28 03:05:13,851 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:05:13,857 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:05:13,857 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:05:13,857 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:05:13,857 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:05:13,857 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:05:13,858 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:05:13,858 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:05:13,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:05:13,898 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 03:05:13,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:13,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:13,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:05:13,904 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:05:13,904 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:05:13,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:05:13,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 03:05:13,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:13,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:13,906 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:05:13,907 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:05:13,913 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem1, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L7true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 10#L12-2true [2019-11-28 03:05:13,913 INFO L796 eck$LassoCheckResult]: Loop: 10#L12-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 10#L12-2true [2019-11-28 03:05:13,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:13,918 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-11-28 03:05:13,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:13,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287430683] [2019-11-28 03:05:13,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,036 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:14,037 INFO L82 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2019-11-28 03:05:14,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:14,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323821504] [2019-11-28 03:05:14,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:14,061 INFO L82 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2019-11-28 03:05:14,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:14,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059727058] [2019-11-28 03:05:14,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:14,102 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:14,323 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-11-28 03:05:14,381 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:14,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:14,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:14,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:14,382 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:14,383 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:14,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:14,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2019-11-28 03:05:14,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:14,384 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:14,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:14,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:14,750 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:14,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:14,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:14,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:14,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:14,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:14,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:14,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:14,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:14,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:14,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:14,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:14,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:14,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:14,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:14,897 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 [2019-11-28 03:05:14,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:14,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:14,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:14,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:14,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:14,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:14,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:14,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:14,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:14,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:14,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:14,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:14,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:15,005 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:15,050 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 03:05:15,051 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:15,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:15,071 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:05:15,072 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:15,073 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_main_~i~0) = 1*~N~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 03:05:15,085 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:05:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:15,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:05:15,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:15,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:05:15,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:15,169 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:05:15,170 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 2 states. [2019-11-28 03:05:15,220 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 2 states. Result 30 states and 39 transitions. Complement of second has 6 states. [2019-11-28 03:05:15,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:05:15,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 03:05:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-11-28 03:05:15,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-28 03:05:15,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:15,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 03:05:15,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:15,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 03:05:15,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:15,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2019-11-28 03:05:15,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:05:15,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2019-11-28 03:05:15,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-28 03:05:15,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-28 03:05:15,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-28 03:05:15,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:05:15,242 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-28 03:05:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-28 03:05:15,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 03:05:15,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 03:05:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-28 03:05:15,277 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-28 03:05:15,277 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-28 03:05:15,277 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:05:15,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-28 03:05:15,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:05:15,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:15,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:15,279 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:05:15,280 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:15,280 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 86#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~mem1, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; 87#L7 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 88#L12-2 assume !(main_~i~0 < ~N~0); 89#L12-3 main_~i~0 := 0; 85#L18-2 [2019-11-28 03:05:15,281 INFO L796 eck$LassoCheckResult]: Loop: 85#L18-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem1 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem1 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 91#L2 assume !(0 == __VERIFIER_assert_~cond); 84#L2-3 havoc main_#t~mem1;main_~i~0 := 1 + main_~i~0; 85#L18-2 [2019-11-28 03:05:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2019-11-28 03:05:15,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:15,282 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326277471] [2019-11-28 03:05:15,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:15,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326277471] [2019-11-28 03:05:15,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:05:15,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:05:15,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852591089] [2019-11-28 03:05:15,345 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:05:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,345 INFO L82 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 1 times [2019-11-28 03:05:15,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:15,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782452894] [2019-11-28 03:05:15,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,368 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:15,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:05:15,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:05:15,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:05:15,482 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 03:05:15,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:05:15,502 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-11-28 03:05:15,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:05:15,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2019-11-28 03:05:15,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:05:15,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2019-11-28 03:05:15,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-28 03:05:15,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-28 03:05:15,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2019-11-28 03:05:15,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:05:15,507 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 03:05:15,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2019-11-28 03:05:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 03:05:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 03:05:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-28 03:05:15,509 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 03:05:15,509 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 03:05:15,510 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:05:15,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2019-11-28 03:05:15,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:05:15,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:05:15,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:05:15,512 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:05:15,512 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:05:15,512 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 110#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~mem1, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet0;havoc main_#t~nondet0; 111#L7 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 114#L12-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 115#L12-2 assume !(main_~i~0 < ~N~0); 116#L12-3 main_~i~0 := 0; 113#L18-2 [2019-11-28 03:05:15,512 INFO L796 eck$LassoCheckResult]: Loop: 113#L18-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem1 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem1 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 118#L2 assume !(0 == __VERIFIER_assert_~cond); 112#L2-3 havoc main_#t~mem1;main_~i~0 := 1 + main_~i~0; 113#L18-2 [2019-11-28 03:05:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,513 INFO L82 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2019-11-28 03:05:15,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:15,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010622944] [2019-11-28 03:05:15,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,545 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,546 INFO L82 PathProgramCache]: Analyzing trace with hash 56828, now seen corresponding path program 2 times [2019-11-28 03:05:15,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:15,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701304763] [2019-11-28 03:05:15,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:15,562 INFO L82 PathProgramCache]: Analyzing trace with hash -450855381, now seen corresponding path program 1 times [2019-11-28 03:05:15,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:05:15,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984464697] [2019-11-28 03:05:15,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:05:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:05:15,645 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:05:15,919 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-11-28 03:05:15,977 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:05:15,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:05:15,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:05:15,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:05:15,978 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:05:15,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:15,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:05:15,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:05:15,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2019-11-28 03:05:15,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:05:15,979 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:05:15,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:15,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:15,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:16,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:16,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:16,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:16,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:05:16,377 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:05:16,377 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:16,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:16,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:16,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:16,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:16,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:16,415 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 [2019-11-28 03:05:16,417 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) [2019-11-28 03:05:16,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:16,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:16,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:05:16,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:05:16,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:05:16,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:05:16,454 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:16,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:16,484 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:16,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:16,506 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:16,517 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 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:05:16,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:16,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:16,528 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:16,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:05:16,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:05:16,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:05:16,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:05:16,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:05:16,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:05:16,586 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:05:16,619 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-28 03:05:16,620 INFO L444 ModelExtractionUtils]: 13 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:05:16,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:05:16,636 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:05:16,636 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:05:16,636 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2) = -4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_2 Supporting invariants [1*ULTIMATE.start_main_~#a~0.offset >= 0] [2019-11-28 03:05:16,648 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:05:16,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:05:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:05:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:16,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 03:05:16,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:05:16,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:05:16,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:05:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:05:16,735 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 03:05:16,735 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-11-28 03:05:16,776 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 12 states and 14 transitions. Complement of second has 5 states. [2019-11-28 03:05:16,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:05:16,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:05:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2019-11-28 03:05:16,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-28 03:05:16,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:16,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 03:05:16,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:16,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-28 03:05:16,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:05:16,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-28 03:05:16,782 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:05:16,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-11-28 03:05:16,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:05:16,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:05:16,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:05:16,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:05:16,784 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:16,784 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:16,784 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:05:16,784 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:05:16,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:05:16,784 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:05:16,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:05:16,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:05:16 BoogieIcfgContainer [2019-11-28 03:05:16,792 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:05:16,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:05:16,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:05:16,794 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:05:16,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:13" (3/4) ... [2019-11-28 03:05:16,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:05:16,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:05:16,802 INFO L168 Benchmark]: Toolchain (without parser) took 3785.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.9 MB). Free memory was 959.0 MB in the beginning and 1.2 GB in the end (delta: -205.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,802 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:05:16,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,810 INFO L168 Benchmark]: Boogie Preprocessor took 39.08 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,810 INFO L168 Benchmark]: RCFGBuilder took 280.25 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,812 INFO L168 Benchmark]: BuchiAutomizer took 3032.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -51.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:05:16,815 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:05:16,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.60 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 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 97.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.08 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 280.25 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3032.88 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -51.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[a] 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 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 13 SDslu, 4 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital115 mio100 ax100 hnf100 lsp92 ukn70 mio100 lsp79 div100 bol100 ite100 ukn100 eq161 hnf90 smp97 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...