./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/seq-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/seq-3.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 63d818ac17d423e56496424f9fa44743b17c8897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:50:24,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:50:24,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:50:24,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:50:24,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:50:24,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:50:24,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:50:24,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:50:24,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:50:24,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:50:24,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:50:24,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:50:24,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:50:24,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:50:24,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:50:24,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:50:24,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:50:24,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:50:24,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:50:24,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:50:24,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:50:24,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:50:24,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:50:24,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:50:24,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:50:24,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:50:24,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:50:24,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:50:24,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:50:24,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:50:24,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:50:24,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:50:24,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:50:24,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:50:24,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:50:24,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:50:24,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:50:24,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:50:24,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:50:24,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:50:24,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:50:24,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:50:24,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:50:24,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:50:24,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:50:24,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:50:24,648 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:50:24,648 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:50:24,649 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:50:24,649 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:50:24,649 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:50:24,649 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:50:24,650 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:50:24,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:50:24,651 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:50:24,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:50:24,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:50:24,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:50:24,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:50:24,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:50:24,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:50:24,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:50:24,653 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:50:24,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:50:24,653 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:50:24,654 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:50:24,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:50:24,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:50:24,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:50:24,654 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:50:24,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:50:24,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:50:24,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:50:24,656 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:50:24,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:50:24,659 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 -> 63d818ac17d423e56496424f9fa44743b17c8897 [2019-11-28 20:50:24,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:50:24,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:50:24,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:50:24,986 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:50:24,987 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:50:24,987 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/seq-3.i [2019-11-28 20:50:25,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72133ef0/b485131fe617412aba61df21af7bb6e1/FLAG0c581a770 [2019-11-28 20:50:25,494 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:50:25,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/seq-3.i [2019-11-28 20:50:25,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72133ef0/b485131fe617412aba61df21af7bb6e1/FLAG0c581a770 [2019-11-28 20:50:25,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72133ef0/b485131fe617412aba61df21af7bb6e1 [2019-11-28 20:50:25,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:50:25,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:50:25,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:50:25,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:50:25,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:50:25,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:50:25" (1/1) ... [2019-11-28 20:50:25,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de29f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:25, skipping insertion in model container [2019-11-28 20:50:25,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:50:25" (1/1) ... [2019-11-28 20:50:25,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:50:25,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:50:26,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:50:26,143 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:50:26,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:50:26,183 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:50:26,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26 WrapperNode [2019-11-28 20:50:26,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:50:26,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:50:26,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:50:26,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:50:26,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:50:26,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:50:26,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:50:26,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:50:26,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (1/1) ... [2019-11-28 20:50:26,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:50:26,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:50:26,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:50:26,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:50:26,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (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 20:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:50:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:50:26,611 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:50:26,611 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 20:50:26,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:26 BoogieIcfgContainer [2019-11-28 20:50:26,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:50:26,614 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:50:26,614 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:50:26,618 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:50:26,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:26,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:50:25" (1/3) ... [2019-11-28 20:50:26,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@648915d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:50:26, skipping insertion in model container [2019-11-28 20:50:26,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:26,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:26" (2/3) ... [2019-11-28 20:50:26,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@648915d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:50:26, skipping insertion in model container [2019-11-28 20:50:26,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:26,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:26" (3/3) ... [2019-11-28 20:50:26,624 INFO L371 chiAutomizerObserver]: Analyzing ICFG seq-3.i [2019-11-28 20:50:26,741 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:50:26,741 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:50:26,741 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:50:26,742 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:50:26,742 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:50:26,742 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:50:26,742 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:50:26,743 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:50:26,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 20:50:26,789 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-28 20:50:26,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:26,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:26,798 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:50:26,798 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:50:26,798 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:50:26,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 20:50:26,800 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-28 20:50:26,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:26,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:26,801 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:50:26,801 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:50:26,810 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L16true assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 8#L17true assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 7#L18-2true [2019-11-28 20:50:26,810 INFO L796 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i0~0 < main_~n0~0);main_#t~post3 := main_~i0~0;main_~i0~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 7#L18-2true [2019-11-28 20:50:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2019-11-28 20:50:26,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:26,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419863674] [2019-11-28 20:50:26,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:26,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:26,925 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2019-11-28 20:50:26,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:26,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231833198] [2019-11-28 20:50:26,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,939 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:26,941 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2019-11-28 20:50:26,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:26,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890548640] [2019-11-28 20:50:26,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:26,960 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:27,017 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:27,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:27,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:27,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:27,019 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:50:27,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:27,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:27,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2019-11-28 20:50:27,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:27,020 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:27,040 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 20:50:27,064 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 20:50:27,075 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 20:50:27,078 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 20:50:27,156 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:27,157 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 [2019-11-28 20:50:27,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:50:27,167 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) [2019-11-28 20:50:27,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:50:27,308 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:50:27,310 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:27,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:27,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:27,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:27,311 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:50:27,311 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,311 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:27,311 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:27,311 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2019-11-28 20:50:27,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:27,312 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:27,313 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 20:50:27,343 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 20:50:27,347 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 20:50:27,352 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 20:50:27,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:27,423 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 20:50:27,433 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 20:50:27,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:27,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:27,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:27,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:27,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:27,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:27,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,453 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:50:27,466 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:50:27,466 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:27,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:50:27,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:50:27,475 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,476 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i0~0, ULTIMATE.start_main_~n0~0) = -1*ULTIMATE.start_main_~i0~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2019-11-28 20:50:27,482 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:50:27,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:27,539 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:50:27,541 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:27,556 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:50:27,556 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:27,557 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 20:50:27,575 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 20:50:27,577 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 2 states. [2019-11-28 20:50:27,634 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 2 states. Result 38 states and 54 transitions. Complement of second has 5 states. [2019-11-28 20:50:27,634 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 20:50:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:50:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2019-11-28 20:50:27,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-28 20:50:27,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:27,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 20:50:27,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:27,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 20:50:27,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:27,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 54 transitions. [2019-11-28 20:50:27,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 20:50:27,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 11 states and 14 transitions. [2019-11-28 20:50:27,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:50:27,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:50:27,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-28 20:50:27,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:27,653 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-28 20:50:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-28 20:50:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 20:50:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 20:50:27,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-28 20:50:27,676 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-28 20:50:27,676 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-28 20:50:27,677 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:50:27,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-28 20:50:27,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 20:50:27,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:27,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:27,679 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:50:27,679 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:50:27,679 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 95#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 96#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 92#L18-2 assume !(main_~i0~0 < main_~n0~0); 87#L18-3 main_~i1~0 := 0; 88#L23-2 [2019-11-28 20:50:27,680 INFO L796 eck$LassoCheckResult]: Loop: 88#L23-2 assume !!(main_~i1~0 < main_~n1~0);main_#t~post5 := main_~i1~0;main_~i1~0 := 1 + main_#t~post5;havoc main_#t~post5;main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 88#L23-2 [2019-11-28 20:50:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:27,680 INFO L82 PathProgramCache]: Analyzing trace with hash 29742571, now seen corresponding path program 1 times [2019-11-28 20:50:27,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:27,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695626267] [2019-11-28 20:50:27,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:27,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:27,696 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2019-11-28 20:50:27,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:27,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278111457] [2019-11-28 20:50:27,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,705 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:27,706 INFO L82 PathProgramCache]: Analyzing trace with hash 922019734, now seen corresponding path program 1 times [2019-11-28 20:50:27,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:27,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382660770] [2019-11-28 20:50:27,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:27,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:27,747 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:27,748 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:27,748 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:27,748 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:27,748 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:50:27,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:27,749 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:27,749 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2019-11-28 20:50:27,749 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:27,749 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:27,751 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 20:50:27,756 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 20:50:27,770 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 20:50:27,774 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 20:50:27,824 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:27,825 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2019-11-28 20:50:27,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:50:27,831 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:27,837 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:50:27,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:27,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:50:27,847 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 20:50:27,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:50:27,865 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:28,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:50:28,018 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:28,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:28,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:28,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:28,018 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:50:28,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:28,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:28,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:28,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2019-11-28 20:50:28,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:28,019 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:28,021 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 20:50:28,034 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 20:50:28,036 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 20:50:28,044 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 20:50:28,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:28,113 INFO L489 LassoAnalysis]: Using template 'affine'. 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 20:50:28,129 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 20:50:28,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:28,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:28,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:28,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:28,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:28,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:28,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:28,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:50:28,142 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:50:28,142 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:28,157 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:50:28,157 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:50:28,157 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:50:28,157 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0, ULTIMATE.start_main_~n1~0) = -1*ULTIMATE.start_main_~i1~0 + 1*ULTIMATE.start_main_~n1~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:28,163 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:50:28,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:28,190 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:50:28,191 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:28,197 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:50:28,198 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:28,198 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 20:50:28,199 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 20:50:28,199 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6 Second operand 2 states. [2019-11-28 20:50:28,212 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2019-11-28 20:50:28,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:50:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:50:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-28 20:50:28,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-28 20:50:28,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:28,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-28 20:50:28,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:28,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 20:50:28,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:28,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2019-11-28 20:50:28,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:50:28,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2019-11-28 20:50:28,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:50:28,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:50:28,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-28 20:50:28,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:28,219 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-28 20:50:28,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-28 20:50:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 20:50:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 20:50:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-28 20:50:28,222 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-28 20:50:28,222 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-28 20:50:28,222 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:50:28,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-28 20:50:28,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:50:28,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:28,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:28,224 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:50:28,224 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:50:28,225 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 159#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 160#L18-2 assume !(main_~i0~0 < main_~n0~0); 151#L18-3 main_~i1~0 := 0; 152#L23-2 assume !(main_~i1~0 < main_~n1~0); 156#L23-3 main_~j1~0 := 0; 153#L28-2 [2019-11-28 20:50:28,225 INFO L796 eck$LassoCheckResult]: Loop: 153#L28-2 assume !!(main_~j1~0 < main_~n0~0 + main_~n1~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 154#L4 assume !(0 == __VERIFIER_assert_~cond); 162#L4-2 main_#t~post7 := main_~j1~0;main_~j1~0 := 1 + main_#t~post7;havoc main_#t~post7;main_#t~post8 := main_~k~0;main_~k~0 := main_#t~post8 - 1;havoc main_#t~post8; 153#L28-2 [2019-11-28 20:50:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:28,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1482159343, now seen corresponding path program 1 times [2019-11-28 20:50:28,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:28,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775395447] [2019-11-28 20:50:28,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:28,241 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:28,242 INFO L82 PathProgramCache]: Analyzing trace with hash 75696, now seen corresponding path program 1 times [2019-11-28 20:50:28,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:28,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83433072] [2019-11-28 20:50:28,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:28,258 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:28,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1549828768, now seen corresponding path program 1 times [2019-11-28 20:50:28,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:28,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033231265] [2019-11-28 20:50:28,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:28,393 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 20:50:28,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033231265] [2019-11-28 20:50:28,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:50:28,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:50:28,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937754382] [2019-11-28 20:50:28,431 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:28,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:28,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:28,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:28,432 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:50:28,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:28,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:28,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:28,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2019-11-28 20:50:28,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:28,433 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:28,435 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 20:50:28,443 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 20:50:28,446 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 20:50:28,459 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 20:50:28,539 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:28,540 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2019-11-28 20:50:28,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:50:28,554 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 20:50:28,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:50:28,575 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:31,170 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:50:31,173 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:31,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:31,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:31,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:31,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:50:31,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:31,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:31,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:31,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2019-11-28 20:50:31,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:31,174 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:31,176 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 20:50:31,190 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 20:50:31,194 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 20:50:31,197 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 20:50:31,304 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:31,304 INFO L489 LassoAnalysis]: Using template 'affine'. 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 20:50:31,312 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 20:50:31,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:31,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:31,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:31,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:31,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:31,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:31,318 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 20:50:31,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:50:31,330 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:50:31,330 INFO L444 ModelExtractionUtils]: 1 out of 5 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:31,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:50:31,337 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:50:31,337 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:50:31,338 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n1~0, ULTIMATE.start_main_~j1~0, ULTIMATE.start_main_~n0~0) = 1*ULTIMATE.start_main_~n1~0 - 1*ULTIMATE.start_main_~j1~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:31,349 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:50:31,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:31,375 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:50:31,376 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:31,382 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:50:31,383 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:31,396 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 20:50:31,396 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:50:31,396 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 20:50:31,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 4 states. [2019-11-28 20:50:31,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:50:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:50:31,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-28 20:50:31,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 20:50:31,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:31,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-28 20:50:31,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:31,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-28 20:50:31,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:31,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2019-11-28 20:50:31,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:50:31,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-28 20:50:31,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:50:31,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:50:31,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:50:31,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:31,412 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:31,412 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:31,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:50:31,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:50:31,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:50:31,417 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 7 states. [2019-11-28 20:50:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:50:31,420 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-28 20:50:31,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 20:50:31,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-28 20:50:31,421 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:50:31,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:50:31,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:50:31,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:50:31,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:50:31,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:31,422 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:31,422 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:31,423 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:31,423 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:50:31,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:50:31,423 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:50:31,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:50:31,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:50:31 BoogieIcfgContainer [2019-11-28 20:50:31,430 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:50:31,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:50:31,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:50:31,431 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:50:31,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:26" (3/4) ... [2019-11-28 20:50:31,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:50:31,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:50:31,439 INFO L168 Benchmark]: Toolchain (without parser) took 5599.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 960.4 MB in the beginning and 917.7 MB in the end (delta: 42.7 MB). Peak memory consumption was 204.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,439 INFO L168 Benchmark]: CDTParser took 0.19 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 20:50:31,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.64 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -208.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,442 INFO L168 Benchmark]: Boogie Preprocessor took 39.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,443 INFO L168 Benchmark]: RCFGBuilder took 256.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,444 INFO L168 Benchmark]: BuchiAutomizer took 4816.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.7 MB in the end (delta: 220.0 MB). Peak memory consumption was 220.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:31,444 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 917.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:50:31,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 344.64 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 129.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -208.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4816.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.7 MB in the end (delta: 220.0 MB). Peak memory consumption was 220.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 917.7 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i0 + n0 and consists of 4 locations. One deterministic module has affine ranking function -1 * i1 + n1 and consists of 3 locations. One deterministic module has affine ranking function n1 + -1 * j1 + n0 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. 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 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 39 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq164 hnf92 smp84 dnf100 smp100 tf111 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...