./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:33:52,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:33:52,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:33:52,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:33:52,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:33:52,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:33:52,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:33:52,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:33:52,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:33:52,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:33:52,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:33:52,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:33:52,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:33:52,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:33:52,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:33:52,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:33:52,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:33:52,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:33:52,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:33:52,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:33:52,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:33:52,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:33:52,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:33:52,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:33:52,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:33:52,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:33:52,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:33:52,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:33:52,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:33:52,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:33:52,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:33:52,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:33:52,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:33:52,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:33:52,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:33:52,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:33:52,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:33:52,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:33:52,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:33:52,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:33:52,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:33:52,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:33:52,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:33:52,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:33:52,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:33:52,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:33:52,910 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:33:52,910 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:33:52,910 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:33:52,910 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:33:52,911 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:33:52,911 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:33:52,911 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:33:52,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:33:52,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:33:52,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:33:52,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:33:52,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:33:52,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:33:52,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:33:52,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:33:52,913 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:33:52,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:33:52,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:33:52,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:33:52,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:33:52,914 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:33:52,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:33:52,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:33:52,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:33:52,915 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:33:52,916 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:33:52,917 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d [2020-10-20 06:33:53,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:33:53,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:33:53,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:33:53,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:33:53,141 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:33:53,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2020-10-20 06:33:53,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bd350e0/bfd80fde64a34abc9ab4636795755961/FLAG5d70de08e [2020-10-20 06:33:53,750 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:33:53,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2020-10-20 06:33:53,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bd350e0/bfd80fde64a34abc9ab4636795755961/FLAG5d70de08e [2020-10-20 06:33:54,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bd350e0/bfd80fde64a34abc9ab4636795755961 [2020-10-20 06:33:54,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:33:54,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:33:54,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:54,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:33:54,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:33:54,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1de00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54, skipping insertion in model container [2020-10-20 06:33:54,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:33:54,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:33:54,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:54,316 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:33:54,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:54,360 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:33:54,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54 WrapperNode [2020-10-20 06:33:54,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:54,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:54,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:33:54,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:33:54,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:54,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:33:54,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:33:54,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:33:54,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... [2020-10-20 06:33:54,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:33:54,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:33:54,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:33:54,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:33:54,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:33:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:33:54,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:33:54,734 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-20 06:33:54,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:54 BoogieIcfgContainer [2020-10-20 06:33:54,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:33:54,737 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:33:54,737 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:33:54,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:33:54,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:54,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:33:54" (1/3) ... [2020-10-20 06:33:54,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738c13df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:54, skipping insertion in model container [2020-10-20 06:33:54,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:54,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:54" (2/3) ... [2020-10-20 06:33:54,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738c13df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:54, skipping insertion in model container [2020-10-20 06:33:54,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:54,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:54" (3/3) ... [2020-10-20 06:33:54,745 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2020-10-20 06:33:54,796 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:33:54,796 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:33:54,796 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:33:54,796 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:33:54,797 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:33:54,797 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:33:54,797 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:33:54,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:33:54,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-20 06:33:54,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:54,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:54,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:54,851 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:33:54,851 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:54,851 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:33:54,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-20 06:33:54,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:54,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:54,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:54,854 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:33:54,854 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:54,860 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L21true assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 5#L23-2true [2020-10-20 06:33:54,860 INFO L796 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 8#L25-2true assume !(main_~j~0 < main_~m~0); 7#L25-3true main_~i~0 := 1 + main_~i~0; 5#L23-2true [2020-10-20 06:33:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,865 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-10-20 06:33:54,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685821308] [2020-10-20 06:33:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,974 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash 42943, now seen corresponding path program 1 times [2020-10-20 06:33:54,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176048069] [2020-10-20 06:33:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,992 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:54,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,993 INFO L82 PathProgramCache]: Analyzing trace with hash 29684988, now seen corresponding path program 1 times [2020-10-20 06:33:54,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581133794] [2020-10-20 06:33:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:55,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:55,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:55,014 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:55,085 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:55,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:55,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:55,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:55,086 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:55,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:55,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:55,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2020-10-20 06:33:55,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:55,087 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:55,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,274 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:55,275 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:55,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:55,313 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:55,313 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:55,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:55,357 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:55,357 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:55,383 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:55,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:55,551 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:55,553 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:55,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:55,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:55,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:55,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:55,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:55,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:55,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2020-10-20 06:33:55,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:55,555 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:55,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:55,690 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:55,696 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:55,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:55,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:55,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:55,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:55,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:55,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:55,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:55,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:55,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:55,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:55,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:55,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:55,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:55,788 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) [2020-10-20 06:33:55,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:55,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:55,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:55,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:55,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:55,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:55,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:55,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,846 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:55,851 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:33:55,851 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:55,857 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:55,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:55,858 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:55,858 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 06:33:55,897 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:55,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:55,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:55,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:55,974 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:55,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:56,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:33:56,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-10-20 06:33:56,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 42 states and 62 transitions. Complement of second has 8 states. [2020-10-20 06:33:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:33:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-10-20 06:33:56,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 3 letters. [2020-10-20 06:33:56,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:56,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-20 06:33:56,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:56,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 2 letters. Loop has 6 letters. [2020-10-20 06:33:56,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:56,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2020-10-20 06:33:56,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:33:56,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 14 states and 21 transitions. [2020-10-20 06:33:56,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-20 06:33:56,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 06:33:56,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2020-10-20 06:33:56,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:56,147 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2020-10-20 06:33:56,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2020-10-20 06:33:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-20 06:33:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:33:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 20 transitions. [2020-10-20 06:33:56,178 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-10-20 06:33:56,178 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-10-20 06:33:56,179 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:33:56,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 20 transitions. [2020-10-20 06:33:56,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:33:56,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:56,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:56,181 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:33:56,181 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:56,181 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 98#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 99#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 104#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 96#L28-2 [2020-10-20 06:33:56,182 INFO L796 eck$LassoCheckResult]: Loop: 96#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 96#L28-2 [2020-10-20 06:33:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:56,182 INFO L82 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2020-10-20 06:33:56,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:56,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440323646] [2020-10-20 06:33:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:56,203 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-10-20 06:33:56,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:56,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44222332] [2020-10-20 06:33:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:56,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:56,213 INFO L82 PathProgramCache]: Analyzing trace with hash 29685042, now seen corresponding path program 1 times [2020-10-20 06:33:56,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:56,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281078457] [2020-10-20 06:33:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:56,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:56,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:56,252 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:56,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:56,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:56,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:56,252 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:56,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:56,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:56,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2020-10-20 06:33:56,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:56,253 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:56,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,345 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:56,345 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 06:33:56,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:56,358 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:56,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:56,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:56,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:56,396 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:56,420 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:56,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:56,488 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:56,684 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:56,685 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:56,685 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:56,685 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:56,685 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:56,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:56,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:56,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2020-10-20 06:33:56,686 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:56,686 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:56,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:56,741 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:56,741 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:56,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:56,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:56,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:56,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:56,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:56,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:56,771 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) [2020-10-20 06:33:56,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:56,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:56,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:56,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:56,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,826 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:56,826 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:56,831 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) [2020-10-20 06:33:56,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:56,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:56,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:56,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:56,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:56,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:56,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:56,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:33:56,889 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:33:56,892 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:56,897 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:56,898 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:56,898 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:56,898 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2020-10-20 06:33:56,940 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:56,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:56,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:57,007 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:57,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:57,008 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 [2020-10-20 06:33:57,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10 Second operand 2 states. [2020-10-20 06:33:57,039 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 20 transitions. cyclomatic complexity: 10. Second operand 2 states. Result 27 states and 43 transitions. Complement of second has 6 states. [2020-10-20 06:33:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:33:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-10-20 06:33:57,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 06:33:57,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:57,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-20 06:33:57,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:57,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 06:33:57,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:57,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 43 transitions. [2020-10-20 06:33:57,045 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:33:57,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 18 states and 27 transitions. [2020-10-20 06:33:57,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-20 06:33:57,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-20 06:33:57,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2020-10-20 06:33:57,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:57,047 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-20 06:33:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2020-10-20 06:33:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 06:33:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 06:33:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-10-20 06:33:57,050 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-20 06:33:57,051 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-10-20 06:33:57,051 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:33:57,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2020-10-20 06:33:57,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:33:57,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:57,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:57,053 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:33:57,053 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:57,053 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 181#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 182#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 180#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 188#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 175#L28-3 main_~i~0 := main_~k~0; 186#L25-2 [2020-10-20 06:33:57,053 INFO L796 eck$LassoCheckResult]: Loop: 186#L25-2 assume !(main_~j~0 < main_~m~0); 187#L25-3 main_~i~0 := 1 + main_~i~0; 189#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 186#L25-2 [2020-10-20 06:33:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash 920236275, now seen corresponding path program 1 times [2020-10-20 06:33:57,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:57,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361905196] [2020-10-20 06:33:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:57,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:57,077 INFO L82 PathProgramCache]: Analyzing trace with hash 50233, now seen corresponding path program 2 times [2020-10-20 06:33:57,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:57,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792324332] [2020-10-20 06:33:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,087 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:57,087 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 1 times [2020-10-20 06:33:57,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:57,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015130031] [2020-10-20 06:33:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:57,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:57,119 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:57,145 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:57,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:57,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:57,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:57,145 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:57,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:57,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:57,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2020-10-20 06:33:57,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:57,146 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:57,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,230 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:57,230 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:57,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:57,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:57,264 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:57,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:57,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:57,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:57,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:57,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:57,339 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:57,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:57,377 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:57,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:57,678 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:57,680 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:57,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:57,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:57,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:57,681 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:57,681 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:57,681 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:57,681 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2020-10-20 06:33:57,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:57,682 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:57,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:57,749 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:57,750 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:57,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:57,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:57,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:57,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:57,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:57,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:57,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:57,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,775 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:57,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:57,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:57,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:57,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:57,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:57,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:57,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,830 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:57,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:57,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:57,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:57,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:57,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:57,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:57,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:57,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:57,879 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:33:57,880 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:57,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:57,883 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:57,884 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:57,884 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:57,921 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:57,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:57,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:57,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:57,984 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:57,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:58,063 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:33:58,063 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-10-20 06:33:58,102 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 31 states and 51 transitions. Complement of second has 8 states. [2020-10-20 06:33:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:33:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2020-10-20 06:33:58,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-20 06:33:58,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:33:58,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2020-10-20 06:33:58,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 51 transitions. [2020-10-20 06:33:58,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:33:58,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 22 states and 34 transitions. [2020-10-20 06:33:58,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-20 06:33:58,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-20 06:33:58,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 34 transitions. [2020-10-20 06:33:58,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:58,113 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 34 transitions. [2020-10-20 06:33:58,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 34 transitions. [2020-10-20 06:33:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-10-20 06:33:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 06:33:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2020-10-20 06:33:58,118 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2020-10-20 06:33:58,118 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2020-10-20 06:33:58,118 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:33:58,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2020-10-20 06:33:58,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 06:33:58,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:58,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:58,122 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2020-10-20 06:33:58,122 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:58,122 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 277#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 278#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 288#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 287#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 276#L28-3 main_~i~0 := main_~k~0; 286#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 273#L28-2 [2020-10-20 06:33:58,123 INFO L796 eck$LassoCheckResult]: Loop: 273#L28-2 assume !!(main_~k~0 < main_~N~0 - 1);main_~k~0 := 1 + main_~k~0; 273#L28-2 [2020-10-20 06:33:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 2 times [2020-10-20 06:33:58,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:58,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102464570] [2020-10-20 06:33:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:58,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:58,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:58,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:58,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,165 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 2 times [2020-10-20 06:33:58,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:58,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561660335] [2020-10-20 06:33:58,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:58,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:58,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:58,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,177 INFO L82 PathProgramCache]: Analyzing trace with hash -416201988, now seen corresponding path program 1 times [2020-10-20 06:33:58,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:58,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849845270] [2020-10-20 06:33:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:58,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849845270] [2020-10-20 06:33:58,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:33:58,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:33:58,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440400086] [2020-10-20 06:33:58,287 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:58,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:58,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:58,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:58,288 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:58,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:58,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:58,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:58,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2020-10-20 06:33:58,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:58,289 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:58,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,349 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:58,349 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:58,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:58,355 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:58,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:58,398 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:58,623 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:58,625 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:58,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:58,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:58,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:58,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:58,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:58,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:58,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:58,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2020-10-20 06:33:58,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:58,626 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:58,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:58,687 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:58,688 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:58,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:58,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:58,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:58,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:58,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:58,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:58,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:58,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:58,701 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:58,708 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:33:58,708 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:58,717 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:58,718 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:58,718 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:58,718 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~k~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:58,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,774 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:58,775 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 [2020-10-20 06:33:58,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2020-10-20 06:33:58,789 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2020-10-20 06:33:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:33:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-20 06:33:58,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-20 06:33:58,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,791 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:33:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,818 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:58,819 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:33:58,820 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2020-10-20 06:33:58,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 25 states and 38 transitions. Complement of second has 5 states. [2020-10-20 06:33:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:33:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-20 06:33:58,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-20 06:33:58,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,832 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:33:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:58,862 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:58,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:58,863 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:33:58,863 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16 Second operand 2 states. [2020-10-20 06:33:58,927 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 31 transitions. cyclomatic complexity: 16. Second operand 2 states. Result 36 states and 60 transitions. Complement of second has 5 states. [2020-10-20 06:33:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:33:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-10-20 06:33:58,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 1 letters. [2020-10-20 06:33:58,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 8 letters. Loop has 1 letters. [2020-10-20 06:33:58,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 06:33:58,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:58,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 60 transitions. [2020-10-20 06:33:58,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:33:58,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 22 states and 33 transitions. [2020-10-20 06:33:58,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 06:33:58,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-20 06:33:58,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2020-10-20 06:33:58,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:58,936 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2020-10-20 06:33:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2020-10-20 06:33:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-10-20 06:33:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 06:33:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2020-10-20 06:33:58,940 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-10-20 06:33:58,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:33:58,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:33:58,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:33:58,945 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 4 states. [2020-10-20 06:33:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:33:58,987 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-10-20 06:33:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:33:58,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-10-20 06:33:58,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:58,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2020-10-20 06:33:58,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 06:33:58,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 06:33:58,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-10-20 06:33:58,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:58,989 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 06:33:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-10-20 06:33:58,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 06:33:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 06:33:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-10-20 06:33:58,992 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 06:33:58,992 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 06:33:58,992 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:33:58,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-10-20 06:33:58,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:58,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:58,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:58,994 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2020-10-20 06:33:58,994 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:58,994 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 533#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 534#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 540#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 539#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 528#L28-3 main_~i~0 := main_~k~0; 538#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2020-10-20 06:33:58,995 INFO L796 eck$LassoCheckResult]: Loop: 525#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 526#L28-3 main_~i~0 := main_~k~0; 530#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 525#L28-2 [2020-10-20 06:33:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446525, now seen corresponding path program 3 times [2020-10-20 06:33:58,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:58,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478201734] [2020-10-20 06:33:58,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,011 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash 58767, now seen corresponding path program 1 times [2020-10-20 06:33:59,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:59,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627269617] [2020-10-20 06:33:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,020 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:59,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,021 INFO L82 PathProgramCache]: Analyzing trace with hash -538152755, now seen corresponding path program 4 times [2020-10-20 06:33:59,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:59,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478132923] [2020-10-20 06:33:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,049 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,051 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:59,090 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:59,090 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:59,090 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:59,090 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:59,090 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:59,090 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,090 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:59,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:59,091 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2020-10-20 06:33:59,091 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:59,091 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:59,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,175 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:59,175 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:59,179 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:59,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Honda state: {ULTIMATE.start_main_~k~0=-1, ULTIMATE.start_main_~i~0=-1, ULTIMATE.start_main_~N~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:59,220 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:59,224 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:59,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:59,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:59,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:59,285 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:59,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:59,423 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:59,424 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:59,425 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:59,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:59,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:59,425 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:59,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:59,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:59,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2020-10-20 06:33:59,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:59,425 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:59,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,509 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:59,509 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:59,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:59,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:59,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:59,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:59,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:59,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:59,524 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:59,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:59,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:59,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:59,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:59,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:59,584 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:59,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:59,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:59,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:59,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:59,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:59,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:33:59,644 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:59,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:59,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:59,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:59,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:59,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:59,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:59,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:59,695 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:33:59,695 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:59,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:59,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:59,699 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:59,699 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,733 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:59,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:59,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:59,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:59,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:59,772 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 [2020-10-20 06:33:59,772 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 3 states. [2020-10-20 06:33:59,804 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 5 states. [2020-10-20 06:33:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:33:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-10-20 06:33:59,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:33:59,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:59,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:33:59,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:59,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:33:59,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:59,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2020-10-20 06:33:59,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:59,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2020-10-20 06:33:59,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-20 06:33:59,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-20 06:33:59,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2020-10-20 06:33:59,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:59,808 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-10-20 06:33:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2020-10-20 06:33:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2020-10-20 06:33:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 06:33:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2020-10-20 06:33:59,811 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2020-10-20 06:33:59,811 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2020-10-20 06:33:59,811 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:33:59,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 35 transitions. [2020-10-20 06:33:59,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:33:59,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:59,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:59,813 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-20 06:33:59,813 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:59,813 INFO L794 eck$LassoCheckResult]: Stem: 640#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 635#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 636#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 637#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 651#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 647#L28-3 main_~i~0 := main_~k~0; 648#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 649#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 650#L28-3 main_~i~0 := main_~k~0; 655#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2020-10-20 06:33:59,813 INFO L796 eck$LassoCheckResult]: Loop: 641#L25-3 main_~i~0 := 1 + main_~i~0; 642#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 653#L25-2 assume !(main_~j~0 < main_~m~0); 641#L25-3 [2020-10-20 06:33:59,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,814 INFO L82 PathProgramCache]: Analyzing trace with hash -538152757, now seen corresponding path program 1 times [2020-10-20 06:33:59,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:59,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777308283] [2020-10-20 06:33:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,835 INFO L82 PathProgramCache]: Analyzing trace with hash 67693, now seen corresponding path program 3 times [2020-10-20 06:33:59,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:59,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280575618] [2020-10-20 06:33:59,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:59,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:59,842 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:59,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:59,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1004170083, now seen corresponding path program 2 times [2020-10-20 06:33:59,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:59,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834674755] [2020-10-20 06:33:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:33:59,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834674755] [2020-10-20 06:33:59,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827863769] [2020-10-20 06:33:59,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:33:59,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:33:59,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:33:59,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:59,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:33:59,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:33:59,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-20 06:33:59,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253146270] [2020-10-20 06:33:59,955 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:59,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:59,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:59,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:59,956 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:59,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:59,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:59,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:59,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2020-10-20 06:33:59,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:59,956 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:59,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:59,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,028 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:00,028 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:00,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:00,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:00,036 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:00,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:00,063 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:00,064 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:00,097 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:34:00,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:00,458 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:34:00,460 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:00,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:00,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:00,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:00,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:34:00,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:00,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:00,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2020-10-20 06:34:00,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:00,461 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:00,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,536 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:00,536 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:00,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:00,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:00,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:00,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:00,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:00,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:00,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:00,547 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 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:00,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:00,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:00,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:00,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:00,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:00,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:34:00,579 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:00,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:00,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:00,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:00,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:00,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:00,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:00,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:00,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:34:00,626 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:34:00,627 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:34:00,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:34:00,630 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:34:00,630 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 06:34:00,650 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:34:00,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:00,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:00,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:00,680 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:34:00,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:00,702 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-20 06:34:00,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16 Second operand 4 states. [2020-10-20 06:34:00,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 65 states and 90 transitions. Complement of second has 7 states. [2020-10-20 06:34:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:34:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-20 06:34:00,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:34:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:00,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 06:34:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:00,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 06:34:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:00,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 90 transitions. [2020-10-20 06:34:00,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-20 06:34:00,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 50 states and 68 transitions. [2020-10-20 06:34:00,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-20 06:34:00,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 06:34:00,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 68 transitions. [2020-10-20 06:34:00,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:00,738 INFO L691 BuchiCegarLoop]: Abstraction has 50 states and 68 transitions. [2020-10-20 06:34:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 68 transitions. [2020-10-20 06:34:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2020-10-20 06:34:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 06:34:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2020-10-20 06:34:00,745 INFO L714 BuchiCegarLoop]: Abstraction has 34 states and 49 transitions. [2020-10-20 06:34:00,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:34:00,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:34:00,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:34:00,745 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand 6 states. [2020-10-20 06:34:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:34:00,824 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2020-10-20 06:34:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:34:00,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 49 transitions. [2020-10-20 06:34:00,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:34:00,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 49 transitions. [2020-10-20 06:34:00,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-20 06:34:00,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-20 06:34:00,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 49 transitions. [2020-10-20 06:34:00,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:00,828 INFO L691 BuchiCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-10-20 06:34:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 49 transitions. [2020-10-20 06:34:00,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 23. [2020-10-20 06:34:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 06:34:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2020-10-20 06:34:00,830 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2020-10-20 06:34:00,831 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2020-10-20 06:34:00,831 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 06:34:00,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 35 transitions. [2020-10-20 06:34:00,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:34:00,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:34:00,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:34:00,832 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:34:00,832 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:34:00,832 INFO L794 eck$LassoCheckResult]: Stem: 909#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 907#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 908#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 916#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 917#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 901#L28-3 main_~i~0 := main_~k~0; 912#L25-2 assume !(main_~j~0 < main_~m~0); 910#L25-3 [2020-10-20 06:34:00,832 INFO L796 eck$LassoCheckResult]: Loop: 910#L25-3 main_~i~0 := 1 + main_~i~0; 902#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 903#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 898#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 899#L28-3 main_~i~0 := main_~k~0; 920#L25-2 assume !(main_~j~0 < main_~m~0); 910#L25-3 [2020-10-20 06:34:00,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:00,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1537446527, now seen corresponding path program 2 times [2020-10-20 06:34:00,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:00,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310919616] [2020-10-20 06:34:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:00,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:00,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2016730719, now seen corresponding path program 1 times [2020-10-20 06:34:00,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:00,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072616248] [2020-10-20 06:34:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:00,853 INFO L82 PathProgramCache]: Analyzing trace with hash -504812577, now seen corresponding path program 3 times [2020-10-20 06:34:00,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:00,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714342820] [2020-10-20 06:34:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:00,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:00,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:00,898 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:00,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:00,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:00,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:00,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:34:00,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:00,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:00,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2020-10-20 06:34:00,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:00,899 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:00,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:00,981 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:00,981 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:00,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:00,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:00,995 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:00,995 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~j~0=1, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:01,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:01,017 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:01,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:34:01,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:13,074 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-10-20 06:34:13,077 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:13,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:13,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:13,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:13,077 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:34:13,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:13,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:13,078 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2020-10-20 06:34:13,078 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:13,078 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:13,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,164 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:13,164 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:13,173 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:13,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:13,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:13,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:13,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:13,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:13,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:13,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:34:13,182 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:34:13,182 INFO L444 ModelExtractionUtils]: 2 out of 6 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 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:34:13,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:34:13,185 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:34:13,185 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 06:34:13,205 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:34:13,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:13,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:13,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:13,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:34:13,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:13,287 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-10-20 06:34:13,287 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2020-10-20 06:34:13,318 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 49 states and 69 transitions. Complement of second has 7 states. [2020-10-20 06:34:13,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:34:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-20 06:34:13,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:34:13,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:13,320 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:34:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:13,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:13,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:13,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:34:13,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:13,426 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2020-10-20 06:34:13,426 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17 Second operand 6 states. [2020-10-20 06:34:13,528 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 35 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 56 states and 79 transitions. Complement of second has 10 states. [2020-10-20 06:34:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:34:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-10-20 06:34:13,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:34:13,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:13,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2020-10-20 06:34:13,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:13,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 7 letters. Loop has 12 letters. [2020-10-20 06:34:13,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:13,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 79 transitions. [2020-10-20 06:34:13,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:34:13,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 43 states and 60 transitions. [2020-10-20 06:34:13,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-20 06:34:13,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-20 06:34:13,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 60 transitions. [2020-10-20 06:34:13,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:13,538 INFO L691 BuchiCegarLoop]: Abstraction has 43 states and 60 transitions. [2020-10-20 06:34:13,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 60 transitions. [2020-10-20 06:34:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2020-10-20 06:34:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 06:34:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2020-10-20 06:34:13,545 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2020-10-20 06:34:13,545 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2020-10-20 06:34:13,545 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 06:34:13,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 52 transitions. [2020-10-20 06:34:13,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:34:13,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:34:13,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:34:13,549 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:34:13,549 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:34:13,549 INFO L794 eck$LassoCheckResult]: Stem: 1160#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~i~0, main_~j~0, main_~k~0, main_~m~0, main_~n~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~m~0;havoc main_~n~0;havoc main_~N~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~k~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~m~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 1158#L21 assume (0 <= main_~n~0 && 0 <= main_~m~0) && 0 <= main_~N~0;main_~i~0 := 0; 1159#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1174#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1171#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1168#L28-3 main_~i~0 := main_~k~0; 1167#L25-2 assume !(main_~j~0 < main_~m~0); 1161#L25-3 main_~i~0 := 1 + main_~i~0; 1154#L23-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 1155#L25-2 [2020-10-20 06:34:13,550 INFO L796 eck$LassoCheckResult]: Loop: 1155#L25-2 assume !!(main_~j~0 < main_~m~0);main_~j~0 := 1 + main_~j~0;main_~k~0 := main_~i~0; 1150#L28-2 assume !(main_~k~0 < main_~N~0 - 1); 1151#L28-3 main_~i~0 := main_~k~0; 1155#L25-2 [2020-10-20 06:34:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:13,550 INFO L82 PathProgramCache]: Analyzing trace with hash -17361401, now seen corresponding path program 4 times [2020-10-20 06:34:13,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:13,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590154315] [2020-10-20 06:34:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,575 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:13,576 INFO L82 PathProgramCache]: Analyzing trace with hash 51867, now seen corresponding path program 2 times [2020-10-20 06:34:13,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:13,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392497164] [2020-10-20 06:34:13,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,584 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:13,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:13,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1817399595, now seen corresponding path program 5 times [2020-10-20 06:34:13,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:13,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558484406] [2020-10-20 06:34:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:13,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:13,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:13,616 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:13,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:13,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:13,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:13,617 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:34:13,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:13,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:13,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2020-10-20 06:34:13,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:13,618 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:13,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,682 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:13,682 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:13,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:13,692 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:13,692 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:13,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:13,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:13,719 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:13,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:13,740 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,744 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:13,745 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=2, ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~N~0=3} Honda state: {ULTIMATE.start_main_~k~0=2, ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~N~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:13,769 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:34:13,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:13,950 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:34:13,951 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:13,952 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:13,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:13,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:13,952 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:34:13,952 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:13,952 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:13,952 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:13,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2020-10-20 06:34:13,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:13,952 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:13,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:13,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:14,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:14,024 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:14,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:14,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:14,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:14,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:14,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:14,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:14,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:34:14,040 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:14,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:14,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:14,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:14,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:14,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:14,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:14,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:14,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:14,075 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 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:14,098 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:14,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:14,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:14,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:14,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:14,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:14,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:14,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:14,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:34:14,107 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:34:14,107 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:14,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:34:14,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:34:14,109 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:34:14,109 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-10-20 06:34:14,129 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:34:14,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:14,177 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:34:14,177 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2020-10-20 06:34:14,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 55 states and 81 transitions. Complement of second has 5 states. [2020-10-20 06:34:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-10-20 06:34:14,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:34:14,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:14,186 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:34:14,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:14,251 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:34:14,251 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2020-10-20 06:34:14,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 51 states and 75 transitions. Complement of second has 7 states. [2020-10-20 06:34:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2020-10-20 06:34:14,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:34:14,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:14,275 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:34:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:14,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:34:14,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:14,317 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:34:14,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26 Second operand 3 states. [2020-10-20 06:34:14,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 52 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 69 states and 104 transitions. Complement of second has 4 states. [2020-10-20 06:34:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2020-10-20 06:34:14,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:34:14,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:14,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 12 letters. Loop has 3 letters. [2020-10-20 06:34:14,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:14,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 9 letters. Loop has 6 letters. [2020-10-20 06:34:14,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:14,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 104 transitions. [2020-10-20 06:34:14,332 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:34:14,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 0 states and 0 transitions. [2020-10-20 06:34:14,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:34:14,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:34:14,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:34:14,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:34:14,333 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:14,333 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:14,333 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:14,334 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 06:34:14,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:34:14,334 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:34:14,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:34:14,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:34:14 BoogieIcfgContainer [2020-10-20 06:34:14,340 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:34:14,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:34:14,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:34:14,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:34:14,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:54" (3/4) ... [2020-10-20 06:34:14,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:34:14,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:34:14,348 INFO L168 Benchmark]: Toolchain (without parser) took 20302.10 ms. Allocated memory was 43.0 MB in the beginning and 67.6 MB in the end (delta: 24.6 MB). Free memory was 24.1 MB in the beginning and 32.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,349 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 52.9 kB). Peak memory consumption was 52.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.12 ms. Allocated memory is still 43.0 MB. Free memory was 23.1 MB in the beginning and 13.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.68 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 13.5 MB in the beginning and 24.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,351 INFO L168 Benchmark]: Boogie Preprocessor took 45.81 ms. Allocated memory is still 43.5 MB. Free memory was 24.8 MB in the beginning and 23.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,351 INFO L168 Benchmark]: RCFGBuilder took 274.40 ms. Allocated memory is still 43.5 MB. Free memory was 23.5 MB in the beginning and 13.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,352 INFO L168 Benchmark]: BuchiAutomizer took 19603.00 ms. Allocated memory was 43.5 MB in the beginning and 67.6 MB in the end (delta: 24.1 MB). Free memory was 13.0 MB in the beginning and 33.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,353 INFO L168 Benchmark]: Witness Printer took 3.98 ms. Allocated memory is still 67.6 MB. Free memory was 33.1 MB in the beginning and 32.3 MB in the end (delta: 764.3 kB). Peak memory consumption was 764.3 kB. Max. memory is 14.3 GB. [2020-10-20 06:34:14,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 52.9 kB). Peak memory consumption was 52.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 308.12 ms. Allocated memory is still 43.0 MB. Free memory was 23.1 MB in the beginning and 13.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 53.68 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 13.5 MB in the beginning and 24.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 45.81 ms. Allocated memory is still 43.5 MB. Free memory was 24.8 MB in the beginning and 23.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 274.40 ms. Allocated memory is still 43.5 MB. Free memory was 23.5 MB in the beginning and 13.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 19603.00 ms. Allocated memory was 43.5 MB in the beginning and 67.6 MB in the end (delta: 24.1 MB). Free memory was 13.0 MB in the beginning and 33.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * Witness Printer took 3.98 ms. Allocated memory is still 67.6 MB. Free memory was 33.1 MB in the beginning and 32.3 MB in the end (delta: 764.3 kB). Peak memory consumption was 764.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (2 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * i and consists of 6 locations. One nondeterministic module has affine ranking function -1 * k + N and consists of 4 locations. One nondeterministic module has affine ranking function m + -1 * j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.5s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 17.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 49 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 7. Nontrivial modules had stage [5, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 163 SDtfs, 160 SDslu, 63 SDs, 0 SdLazy, 133 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax169 hnf96 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...