./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 c3fed411 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_1.5.800.v20200727-1323.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 fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:02:38,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:02:38,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:02:38,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:02:38,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:02:38,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:02:38,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:02:38,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:02:38,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:02:38,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:02:38,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:02:38,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:02:38,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:02:38,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:02:38,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:02:38,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:02:38,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:02:38,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:02:38,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:02:38,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:02:38,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:02:38,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:02:38,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:02:38,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:02:38,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:02:38,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:02:38,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:02:38,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:02:38,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:02:38,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:02:38,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:02:38,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:02:38,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:02:38,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:02:38,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:02:38,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:02:38,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:02:38,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:02:38,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:02:38,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:02:38,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:02:38,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:02:38,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:02:38,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:02:38,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:02:38,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:02:38,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:02:38,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:02:38,735 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:02:38,735 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:02:38,736 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:02:38,736 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:02:38,736 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:02:38,736 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:02:38,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:02:38,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:02:38,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:02:38,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:02:38,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:02:38,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:02:38,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:02:38,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:02:38,740 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 [2021-12-19 17:02:38,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:02:38,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:02:38,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:02:38,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:02:38,905 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:02:38,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2021-12-19 17:02:38,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35aa5897e/bbef18cae3a44adcb14b44dd7dd22775/FLAG707b547d9 [2021-12-19 17:02:39,294 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:02:39,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2021-12-19 17:02:39,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35aa5897e/bbef18cae3a44adcb14b44dd7dd22775/FLAG707b547d9 [2021-12-19 17:02:39,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35aa5897e/bbef18cae3a44adcb14b44dd7dd22775 [2021-12-19 17:02:39,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:02:39,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:02:39,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:02:39,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:02:39,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:02:39,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b89bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39, skipping insertion in model container [2021-12-19 17:02:39,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:02:39,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:02:39,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:02:39,445 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:02:39,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:02:39,479 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:02:39,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39 WrapperNode [2021-12-19 17:02:39,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:02:39,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:02:39,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:02:39,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:02:39,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,501 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2021-12-19 17:02:39,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:02:39,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:02:39,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:02:39,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:02:39,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:02:39,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:02:39,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:02:39,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:02:39,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (1/1) ... [2021-12-19 17:02:39,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:39,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:39,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:39,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 17:02:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:02:39,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:02:39,607 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:02:39,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:02:39,661 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:02:39,665 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:02:39,675 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-19 17:02:39,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:39 BoogieIcfgContainer [2021-12-19 17:02:39,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:02:39,677 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:02:39,677 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:02:39,679 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:02:39,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:02:39,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:02:39" (1/3) ... [2021-12-19 17:02:39,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d32469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:02:39, skipping insertion in model container [2021-12-19 17:02:39,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:02:39,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:39" (2/3) ... [2021-12-19 17:02:39,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d32469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:02:39, skipping insertion in model container [2021-12-19 17:02:39,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:02:39,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:39" (3/3) ... [2021-12-19 17:02:39,682 INFO L388 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2021-12-19 17:02:39,720 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:02:39,720 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:02:39,720 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:02:39,720 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:02:39,720 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:02:39,720 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:02:39,721 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:02:39,721 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:02:39,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:39,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:39,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:39,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:39,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 17:02:39,772 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:39,772 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:02:39,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:39,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:39,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:39,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:39,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 17:02:39,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:39,777 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7#L21true assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 6#L23-2true [2021-12-19 17:02:39,778 INFO L793 eck$LassoCheckResult]: Loop: 6#L23-2true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 4#L25-2true assume !(main_~j~0#1 < main_~m~0#1); 8#L25-3true main_~i~0#1 := 1 + main_~i~0#1; 6#L23-2true [2021-12-19 17:02:39,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-19 17:02:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38982874] [2021-12-19 17:02:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:39,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:39,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:39,864 INFO L85 PathProgramCache]: Analyzing trace with hash 43936, now seen corresponding path program 1 times [2021-12-19 17:02:39,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:39,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251218178] [2021-12-19 17:02:39,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:39,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:39,891 INFO L85 PathProgramCache]: Analyzing trace with hash 889513823, now seen corresponding path program 1 times [2021-12-19 17:02:39,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:39,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525297783] [2021-12-19 17:02:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:39,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:39,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:39,981 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:39,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:39,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:39,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:39,982 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:39,982 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:39,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:39,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:39,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2021-12-19 17:02:39,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:39,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:39,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:39,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:40,050 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:40,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 17:02:40,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:40,080 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: [] [2021-12-19 17:02:40,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 17:02:40,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:40,125 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: [] [2021-12-19 17:02:40,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-19 17:02:40,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-19 17:02:40,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:40,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,293 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:40,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,299 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:40,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:40,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:40,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:40,299 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:40,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,299 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:40,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:40,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2021-12-19 17:02:40,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:40,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:40,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:40,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:40,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-19 17:02:40,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:40,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:40,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:40,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:40,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:40,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:40,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:40,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:40,399 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:40,402 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:02:40,403 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:02:40,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-19 17:02:40,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:40,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:40,407 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:40,407 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-19 17:02:40,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,425 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:40,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:40,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:40,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:40,457 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:40,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:40,492 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 [2021-12-19 17:02:40,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:40,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 63 transitions. Complement of second has 8 states. [2021-12-19 17:02:40,582 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 [2021-12-19 17:02:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-12-19 17:02:40,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-19 17:02:40,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:40,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-19 17:02:40,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:40,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-19 17:02:40,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:40,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 63 transitions. [2021-12-19 17:02:40,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 17:02:40,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 22 transitions. [2021-12-19 17:02:40,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-19 17:02:40,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-19 17:02:40,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2021-12-19 17:02:40,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:40,601 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-12-19 17:02:40,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2021-12-19 17:02:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-12-19 17:02:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2021-12-19 17:02:40,615 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2021-12-19 17:02:40,616 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2021-12-19 17:02:40,616 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 17:02:40,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2021-12-19 17:02:40,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 17:02:40,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:40,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:40,616 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 17:02:40,616 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:02:40,617 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 110#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 111#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 101#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 102#L28-2 [2021-12-19 17:02:40,617 INFO L793 eck$LassoCheckResult]: Loop: 102#L28-2 assume !!(main_~k~0#1 < main_~N~0#1 - 1);main_~k~0#1 := 1 + main_~k~0#1; 102#L28-2 [2021-12-19 17:02:40,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:40,617 INFO L85 PathProgramCache]: Analyzing trace with hash 28693995, now seen corresponding path program 1 times [2021-12-19 17:02:40,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:40,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135607478] [2021-12-19 17:02:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:40,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,625 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:40,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2021-12-19 17:02:40,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657176310] [2021-12-19 17:02:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:40,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,628 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,630 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash 889513877, now seen corresponding path program 1 times [2021-12-19 17:02:40,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:40,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295927183] [2021-12-19 17:02:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:40,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,639 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:40,645 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:40,659 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:40,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:40,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:40,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:40,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:40,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,659 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:40,659 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:40,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2021-12-19 17:02:40,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:40,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:40,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,694 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:40,694 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:40,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,695 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-19 17:02:40,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:40,712 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: [] [2021-12-19 17:02:40,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,728 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-19 17:02:40,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,741 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:40,742 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: [] [2021-12-19 17:02:40,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-19 17:02:40,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:40,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 17:02:40,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:40,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:40,912 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:40,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-19 17:02:40,915 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:40,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:40,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:40,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:40,916 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:40,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:40,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:40,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2021-12-19 17:02:40,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:40,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:40,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:40,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:40,951 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:40,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,952 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 17:02:40,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:40,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:40,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:40,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:40,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:40,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:40,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:40,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:40,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:40,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:40,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:40,995 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:40,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 17:02:40,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:41,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:41,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:41,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:41,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:41,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:41,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:41,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:41,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,037 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 17:02:41,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:41,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:41,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:41,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:41,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:41,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:41,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:41,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:41,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:41,064 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-19 17:02:41,064 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:02:41,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,065 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 17:02:41,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:41,067 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:41,067 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:41,067 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~N~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~N~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2021-12-19 17:02:41,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,088 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:41,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:41,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:41,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:41,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:41,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:41,112 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 [2021-12-19 17:02:41,112 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 44 transitions. Complement of second has 6 states. [2021-12-19 17:02:41,123 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 [2021-12-19 17:02:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-12-19 17:02:41,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 1 letters. [2021-12-19 17:02:41,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 6 letters. Loop has 1 letters. [2021-12-19 17:02:41,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-19 17:02:41,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 44 transitions. [2021-12-19 17:02:41,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-19 17:02:41,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 28 transitions. [2021-12-19 17:02:41,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-19 17:02:41,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-19 17:02:41,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2021-12-19 17:02:41,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:41,125 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-19 17:02:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2021-12-19 17:02:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-19 17:02:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2021-12-19 17:02:41,126 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-19 17:02:41,127 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-12-19 17:02:41,127 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 17:02:41,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2021-12-19 17:02:41,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-19 17:02:41,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:41,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:41,127 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:02:41,127 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:41,127 INFO L791 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 188#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 193#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 194#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 192#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 199#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 198#L28-3 main_~i~0#1 := main_~k~0#1; 182#L25-2 [2021-12-19 17:02:41,127 INFO L793 eck$LassoCheckResult]: Loop: 182#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 183#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 200#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 182#L25-2 [2021-12-19 17:02:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126385, now seen corresponding path program 1 times [2021-12-19 17:02:41,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923827802] [2021-12-19 17:02:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:41,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,136 INFO L85 PathProgramCache]: Analyzing trace with hash 51226, now seen corresponding path program 2 times [2021-12-19 17:02:41,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740943659] [2021-12-19 17:02:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash -765356246, now seen corresponding path program 1 times [2021-12-19 17:02:41,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379789438] [2021-12-19 17:02:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,145 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:41,164 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:41,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:41,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:41,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:41,164 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:41,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:41,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:41,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2021-12-19 17:02:41,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:41,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:41,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:41,197 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:41,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,199 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 17:02:41,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:41,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:41,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:41,223 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:41,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,241 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 17:02:41,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:41,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:41,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:41,264 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: [] [2021-12-19 17:02:41,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,283 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 17:02:41,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:41,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:41,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-19 17:02:41,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,322 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 17:02:41,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:41,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:41,550 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:41,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,554 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:41,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:41,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:41,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:41,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:41,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:41,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:41,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2021-12-19 17:02:41,554 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:41,554 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:41,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,603 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:41,603 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:41,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,604 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:41,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:41,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:41,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:41,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:41,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:41,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:41,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:41,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 17:02:41,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:41,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,646 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-19 17:02:41,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:41,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:41,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:41,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:41,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:41,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:41,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:41,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:41,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:41,675 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:02:41,676 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:02:41,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,712 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-19 17:02:41,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:41,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:41,714 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:41,714 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-19 17:02:41,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:41,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:41,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:41,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:41,761 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:41,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:41,790 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 [2021-12-19 17:02:41,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 52 transitions. Complement of second has 8 states. [2021-12-19 17:02:41,812 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 [2021-12-19 17:02:41,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-12-19 17:02:41,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-19 17:02:41,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-19 17:02:41,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-19 17:02:41,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:41,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2021-12-19 17:02:41,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 17:02:41,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 23 states and 35 transitions. [2021-12-19 17:02:41,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-19 17:02:41,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-19 17:02:41,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2021-12-19 17:02:41,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:41,819 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-12-19 17:02:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2021-12-19 17:02:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-19 17:02:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2021-12-19 17:02:41,822 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-12-19 17:02:41,823 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2021-12-19 17:02:41,823 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 17:02:41,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2021-12-19 17:02:41,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 17:02:41,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:41,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:41,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-19 17:02:41,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:02:41,825 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 297#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 298#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 304#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 303#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 302#L28-3 main_~i~0#1 := main_~k~0#1; 288#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 290#L28-2 [2021-12-19 17:02:41,825 INFO L793 eck$LassoCheckResult]: Loop: 290#L28-2 assume !!(main_~k~0#1 < main_~N~0#1 - 1);main_~k~0#1 := 1 + main_~k~0#1; 290#L28-2 [2021-12-19 17:02:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 124343110, now seen corresponding path program 2 times [2021-12-19 17:02:41,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767454050] [2021-12-19 17:02:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,839 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2021-12-19 17:02:41,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364069199] [2021-12-19 17:02:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:41,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash -440330854, now seen corresponding path program 1 times [2021-12-19 17:02:41,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:41,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440165855] [2021-12-19 17:02:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:41,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:41,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:02:41,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440165855] [2021-12-19 17:02:41,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440165855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:02:41,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:02:41,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 17:02:41,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413843136] [2021-12-19 17:02:41,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:02:41,885 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:41,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:41,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:41,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:41,885 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:41,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:41,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:41,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2021-12-19 17:02:41,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:41,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:41,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:41,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:41,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:41,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,928 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-19 17:02:41,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:41,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:41,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:41,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:41,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:41,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:41,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:41,970 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:41,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-19 17:02:41,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:41,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,009 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-19 17:02:42,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:42,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,116 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:42,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,122 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:42,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:42,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:42,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:42,122 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:42,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:42,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:42,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2021-12-19 17:02:42,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:42,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:42,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,181 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:42,181 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:42,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,182 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-19 17:02:42,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:42,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:42,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:42,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:42,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:42,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:42,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:42,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:42,199 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:42,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-19 17:02:42,204 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:02:42,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,205 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-19 17:02:42,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:42,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:42,207 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:42,207 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~N~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~N~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2021-12-19 17:02:42,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-19 17:02:42,222 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,261 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:42,262 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 [2021-12-19 17:02:42,262 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 39 transitions. Complement of second has 5 states. [2021-12-19 17:02:42,273 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 [2021-12-19 17:02:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-19 17:02:42,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-19 17:02:42,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,274 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:42,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,299 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:42,300 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 [2021-12-19 17:02:42,300 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,308 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 39 transitions. Complement of second has 5 states. [2021-12-19 17:02:42,308 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 [2021-12-19 17:02:42,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-19 17:02:42,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-19 17:02:42,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,309 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:42,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,333 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:42,334 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 [2021-12-19 17:02:42,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 61 transitions. Complement of second has 5 states. [2021-12-19 17:02:42,344 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 [2021-12-19 17:02:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2021-12-19 17:02:42,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-19 17:02:42,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 1 letters. [2021-12-19 17:02:42,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-19 17:02:42,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 61 transitions. [2021-12-19 17:02:42,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-19 17:02:42,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 23 states and 34 transitions. [2021-12-19 17:02:42,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-19 17:02:42,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-19 17:02:42,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2021-12-19 17:02:42,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:42,347 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-12-19 17:02:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2021-12-19 17:02:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-12-19 17:02:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-12-19 17:02:42,349 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-12-19 17:02:42,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:02:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 17:02:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 17:02:42,351 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:02:42,369 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-12-19 17:02:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 17:02:42,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-12-19 17:02:42,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:42,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 27 transitions. [2021-12-19 17:02:42,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-19 17:02:42,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-19 17:02:42,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2021-12-19 17:02:42,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:42,371 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-19 17:02:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2021-12-19 17:02:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-19 17:02:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-12-19 17:02:42,372 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-19 17:02:42,372 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-12-19 17:02:42,372 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 17:02:42,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-12-19 17:02:42,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:42,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:42,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:42,373 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-19 17:02:42,373 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:42,373 INFO L791 eck$LassoCheckResult]: Stem: 560#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 561#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 565#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 566#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 572#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 571#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 570#L28-3 main_~i~0#1 := main_~k~0#1; 574#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 557#L28-2 [2021-12-19 17:02:42,373 INFO L793 eck$LassoCheckResult]: Loop: 557#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 568#L28-3 main_~i~0#1 := main_~k~0#1; 555#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 557#L28-2 [2021-12-19 17:02:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash 124343110, now seen corresponding path program 3 times [2021-12-19 17:02:42,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409758629] [2021-12-19 17:02:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,384 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash 59760, now seen corresponding path program 1 times [2021-12-19 17:02:42,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499579555] [2021-12-19 17:02:42,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2043810827, now seen corresponding path program 4 times [2021-12-19 17:02:42,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516944925] [2021-12-19 17:02:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,399 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:42,433 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:42,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:42,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:42,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:42,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:42,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:42,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:42,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2021-12-19 17:02:42,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:42,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:42,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:42,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:42,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,475 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-19 17:02:42,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:42,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:42,495 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~k~0#1=0, ULTIMATE.start_main_~N~0#1=1} Honda state: {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~k~0#1=0, ULTIMATE.start_main_~N~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:42,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,513 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-19 17:02:42,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:42,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:42,525 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: [] [2021-12-19 17:02:42,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-19 17:02:42,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,540 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-19 17:02:42,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:42,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:42,553 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: [] [2021-12-19 17:02:42,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-19 17:02:42,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,568 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-19 17:02:42,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:42,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,607 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-19 17:02:42,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:42,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:42,715 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:42,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,720 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:42,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:42,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:42,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:42,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:42,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:42,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:42,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2021-12-19 17:02:42,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:42,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:42,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:42,761 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:42,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:42,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,762 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-19 17:02:42,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:42,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:42,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:42,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:42,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:42,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:42,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:42,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:42,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,795 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-19 17:02:42,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:42,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:42,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:42,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:42,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:42,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:42,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:42,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:42,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:42,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-19 17:02:42,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,822 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-19 17:02:42,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:42,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:42,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:42,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:42,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:42,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:42,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:42,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:42,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-19 17:02:42,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,861 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-19 17:02:42,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:42,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:42,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:42,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:42,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:42,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:42,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:42,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:42,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:42,885 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-19 17:02:42,885 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:02:42,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:42,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:42,886 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:42,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-19 17:02:42,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:42,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:42,888 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:42,888 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2021-12-19 17:02:42,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:42,903 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:42,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:42,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:42,947 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 [2021-12-19 17:02:42,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,955 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 49 transitions. Complement of second has 5 states. [2021-12-19 17:02:42,955 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 [2021-12-19 17:02:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-12-19 17:02:42,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 8 letters. Loop has 3 letters. [2021-12-19 17:02:42,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-19 17:02:42,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 8 letters. Loop has 6 letters. [2021-12-19 17:02:42,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:42,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2021-12-19 17:02:42,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:42,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 34 states and 45 transitions. [2021-12-19 17:02:42,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-19 17:02:42,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-19 17:02:42,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 45 transitions. [2021-12-19 17:02:42,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:42,959 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-12-19 17:02:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 45 transitions. [2021-12-19 17:02:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2021-12-19 17:02:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-12-19 17:02:42,960 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-12-19 17:02:42,960 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-12-19 17:02:42,960 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-19 17:02:42,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 36 transitions. [2021-12-19 17:02:42,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-19 17:02:42,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:42,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:42,960 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:02:42,960 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:42,961 INFO L791 eck$LassoCheckResult]: Stem: 670#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 671#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 675#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 672#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 673#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 684#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 680#L28-3 main_~i~0#1 := main_~k~0#1; 681#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 686#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 687#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 685#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 677#L28-2 [2021-12-19 17:02:42,961 INFO L793 eck$LassoCheckResult]: Loop: 677#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 678#L28-3 main_~i~0#1 := main_~k~0#1; 691#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 677#L28-2 [2021-12-19 17:02:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2043760173, now seen corresponding path program 2 times [2021-12-19 17:02:42,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939979238] [2021-12-19 17:02:42,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,965 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,968 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,969 INFO L85 PathProgramCache]: Analyzing trace with hash 59760, now seen corresponding path program 2 times [2021-12-19 17:02:42,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669693541] [2021-12-19 17:02:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,970 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:42,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:42,979 INFO L85 PathProgramCache]: Analyzing trace with hash 202955716, now seen corresponding path program 3 times [2021-12-19 17:02:42,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:42,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123026364] [2021-12-19 17:02:42,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:42,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:02:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123026364] [2021-12-19 17:02:43,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123026364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 17:02:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097952468] [2021-12-19 17:02:43,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 17:02:43,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 17:02:43,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,008 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-12-19 17:02:43,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-19 17:02:43,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 17:02:43,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 17:02:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097952468] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 17:02:43,100 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 17:02:43,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2021-12-19 17:02:43,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878893773] [2021-12-19 17:02:43,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 17:02:43,121 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:43,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:43,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:43,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:43,122 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:43,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:43,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:43,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2021-12-19 17:02:43,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:43,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:43,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,163 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:43,163 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:43,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,164 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-19 17:02:43,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:43,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-19 17:02:43,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,190 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-19 17:02:43,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:43,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,304 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:43,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-19 17:02:43,307 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:43,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:43,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:43,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:43,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:43,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:43,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:43,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2021-12-19 17:02:43,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:43,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:43,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:43,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:43,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,368 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:43,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:43,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-19 17:02:43,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:43,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:43,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:43,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:43,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:43,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:43,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:43,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:43,394 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:43,396 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:02:43,396 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:02:43,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,397 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-19 17:02:43,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:43,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:43,398 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:43,398 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2021-12-19 17:02:43,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-19 17:02:43,413 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:43,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,464 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 [2021-12-19 17:02:43,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 63 transitions. Complement of second has 5 states. [2021-12-19 17:02:43,477 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 [2021-12-19 17:02:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-12-19 17:02:43,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-19 17:02:43,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:43,478 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:43,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,513 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 [2021-12-19 17:02:43,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 63 transitions. Complement of second has 5 states. [2021-12-19 17:02:43,518 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 [2021-12-19 17:02:43,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-12-19 17:02:43,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-19 17:02:43,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:43,519 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:43,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:43,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:43,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:43,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:43,555 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 [2021-12-19 17:02:43,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,562 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 70 transitions. Complement of second has 4 states. [2021-12-19 17:02:43,563 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 [2021-12-19 17:02:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2021-12-19 17:02:43,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-19 17:02:43,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:43,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2021-12-19 17:02:43,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:43,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 11 letters. Loop has 6 letters. [2021-12-19 17:02:43,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:43,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 70 transitions. [2021-12-19 17:02:43,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-12-19 17:02:43,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 49 transitions. [2021-12-19 17:02:43,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-19 17:02:43,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-12-19 17:02:43,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 49 transitions. [2021-12-19 17:02:43,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:43,565 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2021-12-19 17:02:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 49 transitions. [2021-12-19 17:02:43,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2021-12-19 17:02:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2021-12-19 17:02:43,566 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2021-12-19 17:02:43,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:02:43,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-19 17:02:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-19 17:02:43,567 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:02:43,617 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-12-19 17:02:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-19 17:02:43,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-12-19 17:02:43,618 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2021-12-19 17:02:43,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 48 transitions. [2021-12-19 17:02:43,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-12-19 17:02:43,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-12-19 17:02:43,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-12-19 17:02:43,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:43,619 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-12-19 17:02:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-12-19 17:02:43,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-12-19 17:02:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2021-12-19 17:02:43,620 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-12-19 17:02:43,621 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-12-19 17:02:43,621 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-19 17:02:43,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2021-12-19 17:02:43,621 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2021-12-19 17:02:43,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:43,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:43,622 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-12-19 17:02:43,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1] [2021-12-19 17:02:43,622 INFO L791 eck$LassoCheckResult]: Stem: 1164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1168#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 1169#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1182#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1179#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1172#L28-3 main_~i~0#1 := main_~k~0#1; 1162#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1163#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1186#L28-3 [2021-12-19 17:02:43,622 INFO L793 eck$LassoCheckResult]: Loop: 1186#L28-3 main_~i~0#1 := main_~k~0#1; 1185#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 1184#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 1183#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1180#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1176#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1172#L28-3 main_~i~0#1 := main_~k~0#1; 1162#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1163#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1186#L28-3 [2021-12-19 17:02:43,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash -440330856, now seen corresponding path program 5 times [2021-12-19 17:02:43,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:43,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400519581] [2021-12-19 17:02:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:43,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,626 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,629 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:43,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1332666324, now seen corresponding path program 1 times [2021-12-19 17:02:43,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:43,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018636558] [2021-12-19 17:02:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:43,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash -779525003, now seen corresponding path program 4 times [2021-12-19 17:02:43,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:43,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911464242] [2021-12-19 17:02:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:43,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,640 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:43,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:43,691 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:43,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:43,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:43,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:43,691 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:43,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:43,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:43,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2021-12-19 17:02:43,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:43,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:43,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:43,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:43,734 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:43,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,734 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-19 17:02:43,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:43,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:43,754 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:43,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:43,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,771 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-19 17:02:43,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:43,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:43,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=2, ULTIMATE.start_main_~m~0#1=2} Honda state: {ULTIMATE.start_main_~j~0#1=2, ULTIMATE.start_main_~m~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:43,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-19 17:02:43,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,803 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-19 17:02:43,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:43,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:43,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:43,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:43,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,847 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-19 17:02:43,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:43,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:43,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-19 17:02:43,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:43,878 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:43,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-19 17:02:43,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:43,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:50,953 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:50,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-19 17:02:50,958 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:50,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:50,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:50,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:50,958 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:50,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:50,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:50,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:50,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2021-12-19 17:02:50,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:50,958 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:50,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:50,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:50,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:50,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:51,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:51,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,009 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-19 17:02:51,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:51,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:51,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:51,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-19 17:02:51,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,035 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-19 17:02:51,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:51,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:51,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:51,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:51,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-19 17:02:51,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,060 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-19 17:02:51,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:51,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:51,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:51,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-19 17:02:51,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,087 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-19 17:02:51,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:51,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:51,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:51,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:51,100 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:02:51,101 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:02:51,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,101 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-19 17:02:51,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:51,103 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:51,103 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:51,103 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-19 17:02:51,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:51,118 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:51,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 17:02:51,219 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-12-19 17:02:51,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:51,284 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 14. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 73 transitions. Complement of second has 12 states. [2021-12-19 17:02:51,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-12-19 17:02:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:51,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2021-12-19 17:02:51,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 9 letters. Loop has 9 letters. [2021-12-19 17:02:51,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:51,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 18 letters. Loop has 9 letters. [2021-12-19 17:02:51,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:51,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 9 letters. Loop has 18 letters. [2021-12-19 17:02:51,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:51,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 73 transitions. [2021-12-19 17:02:51,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:02:51,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 51 states and 64 transitions. [2021-12-19 17:02:51,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-12-19 17:02:51,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-19 17:02:51,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 64 transitions. [2021-12-19 17:02:51,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:02:51,287 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 64 transitions. [2021-12-19 17:02:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 64 transitions. [2021-12-19 17:02:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 36. [2021-12-19 17:02:51,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 35 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2021-12-19 17:02:51,289 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2021-12-19 17:02:51,289 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2021-12-19 17:02:51,289 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-19 17:02:51,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2021-12-19 17:02:51,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 17:02:51,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:02:51,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:02:51,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2021-12-19 17:02:51,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 17:02:51,290 INFO L791 eck$LassoCheckResult]: Stem: 1347#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1348#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1351#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 1352#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1362#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1354#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1357#L28-3 main_~i~0#1 := main_~k~0#1; 1373#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1365#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1359#L28-3 main_~i~0#1 := main_~k~0#1; 1343#L25-2 [2021-12-19 17:02:51,290 INFO L793 eck$LassoCheckResult]: Loop: 1343#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 1344#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 1349#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1343#L25-2 [2021-12-19 17:02:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash -765354612, now seen corresponding path program 6 times [2021-12-19 17:02:51,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:51,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312391868] [2021-12-19 17:02:51,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:51,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,293 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:51,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 51226, now seen corresponding path program 3 times [2021-12-19 17:02:51,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:51,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424165759] [2021-12-19 17:02:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:51,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1302149807, now seen corresponding path program 5 times [2021-12-19 17:02:51,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:02:51,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424048770] [2021-12-19 17:02:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:02:51,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:02:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,301 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:02:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:02:51,304 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:02:51,318 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:51,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:51,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:51,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:51,318 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:02:51,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:51,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:51,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2021-12-19 17:02:51,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:51,318 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:51,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:51,352 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:02:51,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,354 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-19 17:02:51,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:51,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:51,376 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:51,376 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: [] [2021-12-19 17:02:51,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-19 17:02:51,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,413 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-19 17:02:51,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:51,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:51,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:51,422 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:02:51,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-19 17:02:51,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,437 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-19 17:02:51,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:51,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:51,450 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:02:51,450 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: [] [2021-12-19 17:02:51,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-19 17:02:51,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,465 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-19 17:02:51,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:02:51,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:51,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-19 17:02:51,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,489 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-19 17:02:51,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:02:51,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:02:51,731 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:02:51,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:51,735 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:02:51,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:02:51,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:02:51,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:02:51,735 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:02:51,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:02:51,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:02:51,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2021-12-19 17:02:51,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:02:51,736 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:02:51,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:02:51,776 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:02:51,777 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:02:51,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,778 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-19 17:02:51,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:02:51,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:02:51,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:51,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-19 17:02:51,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,820 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-19 17:02:51,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:51,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:51,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:51,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:51,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:02:51,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:51,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-19 17:02:51,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,855 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-19 17:02:51,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:02:51,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:02:51,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:02:51,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:02:51,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:02:51,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:02:51,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:02:51,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:02:51,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:02:51,867 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:02:51,867 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 17:02:51,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:02:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:02:51,868 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:02:51,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-19 17:02:51,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:02:51,871 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:02:51,871 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:02:51,871 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-19 17:02:51,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:51,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:02:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,929 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:51,940 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 [2021-12-19 17:02:51,940 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:51,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 77 transitions. Complement of second has 7 states. [2021-12-19 17:02:51,952 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 [2021-12-19 17:02:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-12-19 17:02:51,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-19 17:02:51,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:51,953 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:51,981 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:51,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:51,991 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 [2021-12-19 17:02:51,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:52,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 77 transitions. Complement of second has 7 states. [2021-12-19 17:02:52,003 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 [2021-12-19 17:02:52,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:52,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-12-19 17:02:52,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-19 17:02:52,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:52,004 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:02:52,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:02:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:52,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:02:52,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:02:52,030 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:02:52,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:02:52,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:02:52,040 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 [2021-12-19 17:02:52,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:52,052 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 74 transitions. Complement of second has 6 states. [2021-12-19 17:02:52,053 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 [2021-12-19 17:02:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:02:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-19 17:02:52,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-19 17:02:52,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:52,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-19 17:02:52,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:52,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-19 17:02:52,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:02:52,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 74 transitions. [2021-12-19 17:02:52,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:02:52,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 17:02:52,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 17:02:52,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:02:52,055 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-19 17:02:52,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 17:02:52,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:02:52,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 17:02:52,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:02:52 BoogieIcfgContainer [2021-12-19 17:02:52,059 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:02:52,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:02:52,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:02:52,060 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:02:52,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:39" (3/4) ... [2021-12-19 17:02:52,062 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 17:02:52,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:02:52,062 INFO L158 Benchmark]: Toolchain (without parser) took 12747.07ms. Allocated memory was 115.3MB in the beginning and 192.9MB in the end (delta: 77.6MB). Free memory was 90.3MB in the beginning and 142.6MB in the end (delta: -52.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-12-19 17:02:52,062 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.76ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 90.0MB in the beginning and 134.8MB in the end (delta: -44.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.34ms. Allocated memory is still 159.4MB. Free memory was 134.8MB in the beginning and 133.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: Boogie Preprocessor took 17.39ms. Allocated memory is still 159.4MB. Free memory was 133.6MB in the beginning and 132.7MB in the end (delta: 907.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: RCFGBuilder took 156.23ms. Allocated memory is still 159.4MB. Free memory was 132.7MB in the beginning and 123.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: BuchiAutomizer took 12382.22ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.9MB in the beginning and 142.6MB in the end (delta: -18.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-12-19 17:02:52,063 INFO L158 Benchmark]: Witness Printer took 2.18ms. Allocated memory is still 192.9MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:02:52,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.76ms. Allocated memory was 115.3MB in the beginning and 159.4MB in the end (delta: 44.0MB). Free memory was 90.0MB in the beginning and 134.8MB in the end (delta: -44.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.34ms. Allocated memory is still 159.4MB. Free memory was 134.8MB in the beginning and 133.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.39ms. Allocated memory is still 159.4MB. Free memory was 133.6MB in the beginning and 132.7MB in the end (delta: 907.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 156.23ms. Allocated memory is still 159.4MB. Free memory was 132.7MB in the beginning and 123.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12382.22ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.9MB in the beginning and 142.6MB in the end (delta: -18.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 2.18ms. Allocated memory is still 192.9MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 16.1GB. * 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, 5 deterministic, 3 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function N + -1 * k and consists of 4 locations. One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function -1 * k + n and consists of 7 locations. One nondeterministic module has affine ranking function N + -1 * k and consists of 4 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + n and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.3s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 11.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 47 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 7. Nontrivial modules had stage [5, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/5 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 218 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 277 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 195 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax172 hnf99 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf92 smp100 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 17:02:52,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-12-19 17:02:52,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-12-19 17:02:52,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE