./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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-15/count_up_alloca.i -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 f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:08:34,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:08:34,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:08:34,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:08:34,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:08:34,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:08:34,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:08:34,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:08:34,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:08:34,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:08:34,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:08:34,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:08:34,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:08:34,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:08:34,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:08:34,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:08:34,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:08:34,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:08:34,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:08:34,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:08:34,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:08:34,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:08:34,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:08:34,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:08:34,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:08:34,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:08:34,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:08:34,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:08:34,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:08:34,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:08:34,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:08:34,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:08:34,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:08:34,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:08:34,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:08:34,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:08:34,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:08:34,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:08:34,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:08:34,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:08:34,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:08:34,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-14 23:08:34,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:08:34,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:08:34,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:08:34,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:08:34,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:08:34,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:08:34,712 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:08:34,712 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:08:34,713 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:08:34,713 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:08:34,714 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:08:34,714 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:08:34,714 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:08:34,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:08:34,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:08:34,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:08:34,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:08:34,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:08:34,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:08:34,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:08:34,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:08:34,716 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:08:34,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:08:34,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:08:34,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:08:34,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:08:34,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:08:34,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:08:34,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:08:34,719 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:08:34,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5 [2021-12-14 23:08:34,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:08:34,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:08:34,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:08:34,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:08:34,950 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:08:34,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_alloca.i [2021-12-14 23:08:35,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ef7f6882/bad2e783c9de4d8cad26aecc98a4ec4a/FLAG61811ea6c [2021-12-14 23:08:35,455 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:08:35,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_alloca.i [2021-12-14 23:08:35,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ef7f6882/bad2e783c9de4d8cad26aecc98a4ec4a/FLAG61811ea6c [2021-12-14 23:08:35,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ef7f6882/bad2e783c9de4d8cad26aecc98a4ec4a [2021-12-14 23:08:35,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:08:35,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:08:35,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:08:35,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:08:35,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:08:35,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:08:35" (1/1) ... [2021-12-14 23:08:35,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a42263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:35, skipping insertion in model container [2021-12-14 23:08:35,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:08:35" (1/1) ... [2021-12-14 23:08:36,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:08:36,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:08:36,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:08:36,278 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:08:36,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:08:36,365 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:08:36,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36 WrapperNode [2021-12-14 23:08:36,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:08:36,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:08:36,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:08:36,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:08:36,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,415 INFO L137 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2021-12-14 23:08:36,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:08:36,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:08:36,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:08:36,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:08:36,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:08:36,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:08:36,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:08:36,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:08:36,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (1/1) ... [2021-12-14 23:08:36,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:36,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:36,491 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) [2021-12-14 23:08:36,514 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 [2021-12-14 23:08:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:08:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:08:36,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:08:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:08:36,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:08:36,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:08:36,580 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:08:36,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:08:36,668 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:08:36,673 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:08:36,673 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-14 23:08:36,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:08:36 BoogieIcfgContainer [2021-12-14 23:08:36,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:08:36,676 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:08:36,676 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:08:36,679 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:08:36,679 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:08:36,680 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:08:35" (1/3) ... [2021-12-14 23:08:36,680 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a33959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:08:36, skipping insertion in model container [2021-12-14 23:08:36,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:08:36,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:08:36" (2/3) ... [2021-12-14 23:08:36,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a33959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:08:36, skipping insertion in model container [2021-12-14 23:08:36,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:08:36,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:08:36" (3/3) ... [2021-12-14 23:08:36,682 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2021-12-14 23:08:36,716 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:08:36,716 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:08:36,717 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:08:36,717 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:08:36,717 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:08:36,717 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:08:36,717 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:08:36,717 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:08:36,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-12-14 23:08:36,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-14 23:08:36,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:36,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:36,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:08:36,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:08:36,771 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:08:36,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-12-14 23:08:36,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-14 23:08:36,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:36,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:36,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:08:36,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:08:36,779 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 7#L369true assume !(main_~length~0#1 < 1); 12#L369-2true call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 15#L371true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 18#L372-3true [2021-12-14 23:08:36,779 INFO L793 eck$LassoCheckResult]: Loop: 18#L372-3true assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 20#L374true assume main_~val~0#1 > main_~limit~0#1;main_~val~0#1 := main_~limit~0#1; 4#L374-2true call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 17#L372-2true main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 18#L372-3true [2021-12-14 23:08:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-14 23:08:36,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:36,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531072922] [2021-12-14 23:08:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:36,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,874 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2021-12-14 23:08:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:36,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449596310] [2021-12-14 23:08:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:36,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,939 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:36,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:36,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2021-12-14 23:08:36,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:36,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216975294] [2021-12-14 23:08:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:36,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:36,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:37,272 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:08:37,272 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:08:37,272 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:08:37,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:08:37,273 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:08:37,273 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,273 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:08:37,273 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:08:37,273 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2021-12-14 23:08:37,273 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:08:37,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:08:37,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:37,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:08:37,612 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:08:37,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,619 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) [2021-12-14 23:08:37,629 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 [2021-12-14 23:08:37,629 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 [2021-12-14 23:08:37,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:37,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:37,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-14 23:08:37,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,685 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) [2021-12-14 23:08:37,685 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 [2021-12-14 23:08:37,687 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 [2021-12-14 23:08:37,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:37,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:37,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:37,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,742 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 [2021-12-14 23:08:37,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,744 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) [2021-12-14 23:08:37,747 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 [2021-12-14 23:08:37,748 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 [2021-12-14 23:08:37,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:37,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:37,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:37,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,815 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 [2021-12-14 23:08:37,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,816 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) [2021-12-14 23:08:37,820 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 [2021-12-14 23:08:37,820 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 [2021-12-14 23:08:37,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:37,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:37,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:37,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,867 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 [2021-12-14 23:08:37,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,869 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) [2021-12-14 23:08:37,874 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 [2021-12-14 23:08:37,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:37,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:37,891 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 [2021-12-14 23:08:37,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,916 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 [2021-12-14 23:08:37,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,917 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) [2021-12-14 23:08:37,919 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 [2021-12-14 23:08:37,920 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 [2021-12-14 23:08:37,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:37,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:37,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:37,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:37,946 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 [2021-12-14 23:08:37,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:37,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:37,948 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) [2021-12-14 23:08:37,948 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 [2021-12-14 23:08:37,950 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 [2021-12-14 23:08:37,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:37,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:37,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:37,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:37,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:37,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:37,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:38,011 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 [2021-12-14 23:08:38,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:38,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:38,012 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) [2021-12-14 23:08:38,013 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 [2021-12-14 23:08:38,015 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 [2021-12-14 23:08:38,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:38,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:38,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:38,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:38,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:38,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:38,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:38,059 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 [2021-12-14 23:08:38,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:38,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:38,061 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) [2021-12-14 23:08:38,063 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 [2021-12-14 23:08:38,064 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 [2021-12-14 23:08:38,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:38,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:38,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:38,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:38,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:38,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:38,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:38,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:38,107 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 [2021-12-14 23:08:38,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:38,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:38,108 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) [2021-12-14 23:08:38,111 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 [2021-12-14 23:08:38,112 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 [2021-12-14 23:08:38,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:38,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:38,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:38,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:38,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:38,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:38,142 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:08:38,196 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-12-14 23:08:38,196 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-14 23:08:38,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:38,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:38,203 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) [2021-12-14 23:08:38,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:08:38,248 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 [2021-12-14 23:08:38,270 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-14 23:08:38,270 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:08:38,270 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~arr~0#1.offset >= 0] [2021-12-14 23:08:38,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:38,306 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2021-12-14 23:08:38,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:38,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:38,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:38,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:08:38,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:38,561 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-14 23:08:38,562 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-12-14 23:08:38,619 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 [2021-12-14 23:08:38,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 40 states and 57 transitions. Complement of second has 9 states. [2021-12-14 23:08:38,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:08:38,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-12-14 23:08:38,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2021-12-14 23:08:38,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-14 23:08:38,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:38,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-14 23:08:38,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:38,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 8 letters. [2021-12-14 23:08:38,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:38,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2021-12-14 23:08:38,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:08:38,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 15 states and 20 transitions. [2021-12-14 23:08:38,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-14 23:08:38,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-14 23:08:38,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2021-12-14 23:08:38,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:08:38,694 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-14 23:08:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2021-12-14 23:08:38,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-14 23:08:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-12-14 23:08:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-12-14 23:08:38,720 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-14 23:08:38,720 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-14 23:08:38,720 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:08:38,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-12-14 23:08:38,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:08:38,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:38,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:38,721 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:38,722 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:08:38,722 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 142#L369 assume !(main_~length~0#1 < 1); 143#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 147#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 148#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 146#L372-4 main_~j~0#1 := 0; 139#L379-3 [2021-12-14 23:08:38,723 INFO L793 eck$LassoCheckResult]: Loop: 139#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 144#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 145#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 138#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 139#L379-3 [2021-12-14 23:08:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2021-12-14 23:08:38,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:38,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826538685] [2021-12-14 23:08:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:38,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:38,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:08:38,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826538685] [2021-12-14 23:08:38,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826538685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:08:38,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:08:38,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:08:38,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149372109] [2021-12-14 23:08:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:08:38,813 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:08:38,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2021-12-14 23:08:38,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:38,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471109031] [2021-12-14 23:08:38,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:38,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,818 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,829 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:38,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:08:38,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:08:38,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:08:38,872 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-12-14 23:08:38,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:08:38,894 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-12-14 23:08:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:08:38,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-12-14 23:08:38,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:08:38,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2021-12-14 23:08:38,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-14 23:08:38,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-14 23:08:38,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-12-14 23:08:38,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:08:38,899 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-14 23:08:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-12-14 23:08:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-12-14 23:08:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 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) [2021-12-14 23:08:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-12-14 23:08:38,902 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-14 23:08:38,902 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-14 23:08:38,902 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:08:38,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-12-14 23:08:38,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:08:38,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:38,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:38,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:38,904 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:08:38,905 INFO L791 eck$LassoCheckResult]: Stem: 180#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 181#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 182#L369 assume !(main_~length~0#1 < 1); 183#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 186#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 188#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 190#L374 assume !(main_~val~0#1 > main_~limit~0#1); 176#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 177#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 189#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 187#L372-4 main_~j~0#1 := 0; 179#L379-3 [2021-12-14 23:08:38,905 INFO L793 eck$LassoCheckResult]: Loop: 179#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 184#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 185#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 178#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 179#L379-3 [2021-12-14 23:08:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2021-12-14 23:08:38,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416463212] [2021-12-14 23:08:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:38,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,949 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:38,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2021-12-14 23:08:38,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:38,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049240979] [2021-12-14 23:08:38,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:38,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,961 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2021-12-14 23:08:38,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376312727] [2021-12-14 23:08:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:38,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:38,990 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:39,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:39,239 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:08:39,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:08:39,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:08:39,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:08:39,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:08:39,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:08:39,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:08:39,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2021-12-14 23:08:39,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:08:39,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:08:39,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:39,558 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:08:39,558 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:08:39,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,564 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) [2021-12-14 23:08:39,567 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 [2021-12-14 23:08:39,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,577 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 [2021-12-14 23:08:39,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,611 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 [2021-12-14 23:08:39,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,612 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) [2021-12-14 23:08:39,616 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 [2021-12-14 23:08:39,651 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 [2021-12-14 23:08:39,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,690 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 [2021-12-14 23:08:39,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,691 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) [2021-12-14 23:08:39,692 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 [2021-12-14 23:08:39,693 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 [2021-12-14 23:08:39,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,716 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 [2021-12-14 23:08:39,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,717 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) [2021-12-14 23:08:39,719 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 [2021-12-14 23:08:39,720 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 [2021-12-14 23:08:39,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-14 23:08:39,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,764 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) [2021-12-14 23:08:39,764 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 [2021-12-14 23:08:39,765 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 [2021-12-14 23:08:39,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,796 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 [2021-12-14 23:08:39,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,798 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) [2021-12-14 23:08:39,799 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 [2021-12-14 23:08:39,800 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 [2021-12-14 23:08:39,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:39,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:39,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:39,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,842 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) [2021-12-14 23:08:39,843 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 [2021-12-14 23:08:39,844 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 [2021-12-14 23:08:39,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,866 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 [2021-12-14 23:08:39,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,868 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) [2021-12-14 23:08:39,869 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 [2021-12-14 23:08:39,870 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 [2021-12-14 23:08:39,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,895 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 [2021-12-14 23:08:39,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,897 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) [2021-12-14 23:08:39,898 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 [2021-12-14 23:08:39,898 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 [2021-12-14 23:08:39,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:39,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:39,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:39,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,922 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 [2021-12-14 23:08:39,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,923 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) [2021-12-14 23:08:39,923 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 [2021-12-14 23:08:39,924 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 [2021-12-14 23:08:39,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:39,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:39,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:39,980 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 [2021-12-14 23:08:39,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:39,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:39,982 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) [2021-12-14 23:08:39,983 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 [2021-12-14 23:08:39,984 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 [2021-12-14 23:08:39,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:39,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:39,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:39,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:39,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:39,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:40,027 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:08:40,060 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-12-14 23:08:40,060 INFO L444 ModelExtractionUtils]: 2 out of 25 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-12-14 23:08:40,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:40,064 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) [2021-12-14 23:08:40,070 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 [2021-12-14 23:08:40,070 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:08:40,076 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:08:40,077 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:08:40,077 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_2) = -1*ULTIMATE.start_main_~arr~0#1.offset - 4*ULTIMATE.start_main_~j~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_2 Supporting invariants [] [2021-12-14 23:08:40,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-14 23:08:40,099 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-12-14 23:08:40,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:40,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:08:40,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:40,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:40,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:40,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-14 23:08:40,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-14 23:08:40,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 21 states and 27 transitions. Complement of second has 7 states. [2021-12-14 23:08:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:08:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-14 23:08:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-12-14 23:08:40,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-14 23:08:40,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:40,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2021-12-14 23:08:40,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:40,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2021-12-14 23:08:40,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:40,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-14 23:08:40,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:40,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2021-12-14 23:08:40,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-14 23:08:40,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-14 23:08:40,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-12-14 23:08:40,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:08:40,268 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-14 23:08:40,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-12-14 23:08:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-14 23:08:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-12-14 23:08:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-14 23:08:40,270 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-14 23:08:40,270 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-14 23:08:40,271 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:08:40,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-14 23:08:40,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:40,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:40,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:40,272 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:40,272 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:08:40,272 INFO L791 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 305#L369 assume !(main_~length~0#1 < 1); 306#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 312#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 314#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 316#L374 assume !(main_~val~0#1 > main_~limit~0#1); 299#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 300#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 315#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 313#L372-4 main_~j~0#1 := 0; 307#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 309#L380-3 [2021-12-14 23:08:40,272 INFO L793 eck$LassoCheckResult]: Loop: 309#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 310#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 309#L380-3 [2021-12-14 23:08:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2021-12-14 23:08:40,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224317581] [2021-12-14 23:08:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:40,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:40,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2021-12-14 23:08:40,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:40,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100510633] [2021-12-14 23:08:40,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:40,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,296 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,300 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:40,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2021-12-14 23:08:40,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:40,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424269436] [2021-12-14 23:08:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:40,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:40,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:40,386 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 [2021-12-14 23:08:40,535 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:08:40,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:08:40,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:08:40,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:08:40,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:08:40,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:08:40,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:08:40,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2021-12-14 23:08:40,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:08:40,535 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:08:40,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:40,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:08:40,867 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:08:40,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:40,869 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) [2021-12-14 23:08:40,871 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 [2021-12-14 23:08:40,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:40,879 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:40,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:40,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:40,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:40,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:40,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:40,881 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 [2021-12-14 23:08:40,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:40,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-14 23:08:40,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:40,910 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) [2021-12-14 23:08:40,911 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 [2021-12-14 23:08:40,912 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 [2021-12-14 23:08:40,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:40,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:40,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:40,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:40,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:40,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:40,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:40,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:40,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:40,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:40,937 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) [2021-12-14 23:08:40,938 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 [2021-12-14 23:08:40,939 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 [2021-12-14 23:08:40,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:40,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:40,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:40,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:40,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:40,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:40,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:40,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:40,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-14 23:08:40,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:40,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:40,971 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) [2021-12-14 23:08:40,973 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 [2021-12-14 23:08:40,973 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 [2021-12-14 23:08:40,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:40,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:40,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:40,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:40,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:40,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:41,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,019 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 [2021-12-14 23:08:41,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,020 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) [2021-12-14 23:08:41,021 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 [2021-12-14 23:08:41,067 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 [2021-12-14 23:08:41,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:41,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:41,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:41,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,090 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 [2021-12-14 23:08:41,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,091 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) [2021-12-14 23:08:41,092 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 [2021-12-14 23:08:41,093 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 [2021-12-14 23:08:41,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:41,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:41,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:41,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:41,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,117 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) [2021-12-14 23:08:41,119 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 [2021-12-14 23:08:41,119 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 [2021-12-14 23:08:41,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:41,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:41,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:41,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,141 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 [2021-12-14 23:08:41,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,142 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) [2021-12-14 23:08:41,143 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 [2021-12-14 23:08:41,145 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 [2021-12-14 23:08:41,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:41,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:41,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-14 23:08:41,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,200 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) [2021-12-14 23:08:41,201 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 [2021-12-14 23:08:41,202 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 [2021-12-14 23:08:41,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:41,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:41,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-14 23:08:41,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,250 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) [2021-12-14 23:08:41,251 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 [2021-12-14 23:08:41,252 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 [2021-12-14 23:08:41,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:41,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:41,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:41,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:41,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,309 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) [2021-12-14 23:08:41,311 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 [2021-12-14 23:08:41,312 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 [2021-12-14 23:08:41,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:41,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:41,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:41,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:41,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:41,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:41,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:08:41,350 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-14 23:08:41,350 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-14 23:08:41,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:41,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,351 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) [2021-12-14 23:08:41,351 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 [2021-12-14 23:08:41,353 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:08:41,359 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:08:41,359 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:08:41,359 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) ULTIMATE.start_main_~arr~0#1.offset)_1, ULTIMATE.start_main_~limit~0#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) ULTIMATE.start_main_~arr~0#1.offset)_1 + 1*ULTIMATE.start_main_~limit~0#1 Supporting invariants [] [2021-12-14 23:08:41,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:41,380 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-14 23:08:41,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:41,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 23:08:41,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:41,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 23:08:41,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:41,481 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-14 23:08:41,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-12-14 23:08:41,514 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 27 states and 35 transitions. Complement of second has 8 states. [2021-12-14 23:08:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-14 23:08:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-12-14 23:08:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-14 23:08:41,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-14 23:08:41,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:41,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-14 23:08:41,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:41,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2021-12-14 23:08:41,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:41,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2021-12-14 23:08:41,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:41,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2021-12-14 23:08:41,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-14 23:08:41,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-14 23:08:41,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-12-14 23:08:41,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:08:41,529 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-14 23:08:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-12-14 23:08:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-12-14 23:08:41,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 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) [2021-12-14 23:08:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-12-14 23:08:41,531 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-14 23:08:41,531 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-12-14 23:08:41,531 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-14 23:08:41,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2021-12-14 23:08:41,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:41,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:41,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:41,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:41,543 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:08:41,543 INFO L791 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 436#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 439#L369 assume !(main_~length~0#1 < 1); 440#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 448#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 450#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 452#L374 assume !(main_~val~0#1 > main_~limit~0#1); 433#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 434#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 451#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 449#L372-4 main_~j~0#1 := 0; 441#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 442#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 446#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 437#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 438#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 444#L380-3 [2021-12-14 23:08:41,543 INFO L793 eck$LassoCheckResult]: Loop: 444#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 445#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 444#L380-3 [2021-12-14 23:08:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2021-12-14 23:08:41,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:41,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428116500] [2021-12-14 23:08:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:41,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:41,556 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 [2021-12-14 23:08:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:41,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:08:41,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428116500] [2021-12-14 23:08:41,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428116500] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:08:41,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543400543] [2021-12-14 23:08:41,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 23:08:41,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:08:41,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:41,602 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:08:41,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-12-14 23:08:41,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 23:08:41,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 23:08:41,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:41,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:41,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:08:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:41,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543400543] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:08:41,756 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:08:41,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-12-14 23:08:41,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203911104] [2021-12-14 23:08:41,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:08:41,757 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:08:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2021-12-14 23:08:41,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:41,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739581756] [2021-12-14 23:08:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:41,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:41,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:08:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 23:08:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-14 23:08:41,796 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 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) [2021-12-14 23:08:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:08:41,891 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-12-14 23:08:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 23:08:41,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2021-12-14 23:08:41,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:41,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 28 states and 35 transitions. [2021-12-14 23:08:41,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-14 23:08:41,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-14 23:08:41,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2021-12-14 23:08:41,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:08:41,895 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-12-14 23:08:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2021-12-14 23:08:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-12-14 23:08:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-12-14 23:08:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-12-14 23:08:41,898 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-14 23:08:41,898 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-14 23:08:41,898 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-14 23:08:41,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-12-14 23:08:41,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:41,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:41,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:41,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:41,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:08:41,899 INFO L791 eck$LassoCheckResult]: Stem: 617#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 618#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 619#L369 assume !(main_~length~0#1 < 1); 620#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 629#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 630#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 632#L374 assume !(main_~val~0#1 > main_~limit~0#1); 637#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 636#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 633#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 634#L374 assume !(main_~val~0#1 > main_~limit~0#1); 613#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 614#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 631#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 628#L372-4 main_~j~0#1 := 0; 621#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 622#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 635#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 615#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 616#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 624#L380-3 [2021-12-14 23:08:41,899 INFO L793 eck$LassoCheckResult]: Loop: 624#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 625#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 624#L380-3 [2021-12-14 23:08:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2021-12-14 23:08:41,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:41,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686952749] [2021-12-14 23:08:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:41,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2021-12-14 23:08:41,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:41,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526562964] [2021-12-14 23:08:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:41,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,933 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,936 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:41,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2021-12-14 23:08:41,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:41,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405744156] [2021-12-14 23:08:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:41,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,948 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:41,958 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:42,249 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:08:42,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:08:42,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:08:42,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:08:42,250 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:08:42,250 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,250 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:08:42,250 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:08:42,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration6_Lasso [2021-12-14 23:08:42,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:08:42,250 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:08:42,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:42,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:08:42,648 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:08:42,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,652 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-14 23:08:42,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-14 23:08:42,656 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 [2021-12-14 23:08:42,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:42,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:42,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:42,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-14 23:08:42,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,680 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) [2021-12-14 23:08:42,683 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 [2021-12-14 23:08:42,684 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 [2021-12-14 23:08:42,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:42,691 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:42,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:42,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,736 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) [2021-12-14 23:08:42,739 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 [2021-12-14 23:08:42,740 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 [2021-12-14 23:08:42,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:42,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:42,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:42,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:42,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,777 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) [2021-12-14 23:08:42,778 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 [2021-12-14 23:08:42,779 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 [2021-12-14 23:08:42,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:42,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:42,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:42,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:42,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,804 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) [2021-12-14 23:08:42,805 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 [2021-12-14 23:08:42,806 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 [2021-12-14 23:08:42,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:42,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:42,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,831 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 [2021-12-14 23:08:42,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,832 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) [2021-12-14 23:08:42,832 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 [2021-12-14 23:08:42,834 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 [2021-12-14 23:08:42,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:42,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:42,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-14 23:08:42,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,890 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) [2021-12-14 23:08:42,890 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 [2021-12-14 23:08:42,892 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 [2021-12-14 23:08:42,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,901 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:42,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:42,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:42,919 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 [2021-12-14 23:08:42,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,920 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) [2021-12-14 23:08:42,921 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 [2021-12-14 23:08:42,922 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 [2021-12-14 23:08:42,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:42,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:42,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:42,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:42,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:42,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:42,960 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:08:42,988 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-14 23:08:42,988 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-12-14 23:08:42,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:42,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:42,990 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) [2021-12-14 23:08:42,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:08:43,008 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 [2021-12-14 23:08:43,012 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:08:43,012 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:08:43,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 4))_1, ULTIMATE.start_main_~limit~0#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 4))_1 + 1*ULTIMATE.start_main_~limit~0#1 Supporting invariants [] [2021-12-14 23:08:43,027 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 [2021-12-14 23:08:43,039 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-12-14 23:08:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,174 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-14 23:08:43,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 26 states and 33 transitions. Complement of second has 4 states. [2021-12-14 23:08:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-14 23:08:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-14 23:08:43,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-14 23:08:43,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:43,200 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:08:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,312 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-14 23:08:43,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 26 states and 33 transitions. Complement of second has 4 states. [2021-12-14 23:08:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-14 23:08:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-14 23:08:43,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-14 23:08:43,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:43,330 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:08:43,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,456 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-14 23:08:43,456 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,515 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 40 states and 50 transitions. Complement of second has 10 states. [2021-12-14 23:08:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-14 23:08:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-12-14 23:08:43,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 33 transitions. [2021-12-14 23:08:43,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-14 23:08:43,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:43,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 22 letters. Loop has 2 letters. [2021-12-14 23:08:43,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:43,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 20 letters. Loop has 4 letters. [2021-12-14 23:08:43,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:43,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2021-12-14 23:08:43,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:43,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 35 states and 43 transitions. [2021-12-14 23:08:43,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-14 23:08:43,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-14 23:08:43,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 43 transitions. [2021-12-14 23:08:43,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:08:43,520 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2021-12-14 23:08:43,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 43 transitions. [2021-12-14 23:08:43,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-12-14 23:08:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 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) [2021-12-14 23:08:43,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-12-14 23:08:43,522 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-14 23:08:43,522 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-14 23:08:43,523 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-14 23:08:43,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2021-12-14 23:08:43,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:43,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:43,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:43,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:43,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:08:43,524 INFO L791 eck$LassoCheckResult]: Stem: 1023#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1024#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 1025#L369 assume !(main_~length~0#1 < 1); 1026#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 1035#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1037#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1040#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1043#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1038#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1039#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1041#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1019#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1020#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1042#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 1036#L372-4 main_~j~0#1 := 0; 1027#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1028#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1046#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1021#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1022#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1029#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1048#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1045#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1044#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1031#L380-3 [2021-12-14 23:08:43,524 INFO L793 eck$LassoCheckResult]: Loop: 1031#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1030#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 1031#L380-3 [2021-12-14 23:08:43,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1808436561, now seen corresponding path program 4 times [2021-12-14 23:08:43,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:43,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956373731] [2021-12-14 23:08:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:43,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:08:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956373731] [2021-12-14 23:08:43,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956373731] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:08:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162873319] [2021-12-14 23:08:43,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 23:08:43,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:08:43,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:43,602 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:08:43,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:43,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-12-14 23:08:43,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 23:08:43,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 23:08:43,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 23:08:43,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:08:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:43,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162873319] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:08:43,792 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:08:43,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-12-14 23:08:43,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436662488] [2021-12-14 23:08:43,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:08:43,793 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:08:43,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 4 times [2021-12-14 23:08:43,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:43,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036055110] [2021-12-14 23:08:43,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:43,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,806 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,820 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:43,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:08:43,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 23:08:43,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-14 23:08:43,848 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 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) [2021-12-14 23:08:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:08:43,940 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2021-12-14 23:08:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 23:08:43,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 60 transitions. [2021-12-14 23:08:43,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:43,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 37 states and 46 transitions. [2021-12-14 23:08:43,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-14 23:08:43,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-14 23:08:43,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2021-12-14 23:08:43,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:08:43,942 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2021-12-14 23:08:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2021-12-14 23:08:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2021-12-14 23:08:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 33 states have internal predecessors, (42), 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) [2021-12-14 23:08:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2021-12-14 23:08:43,945 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 42 transitions. [2021-12-14 23:08:43,945 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 42 transitions. [2021-12-14 23:08:43,945 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-14 23:08:43,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 42 transitions. [2021-12-14 23:08:43,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-14 23:08:43,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:08:43,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:08:43,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:08:43,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-14 23:08:43,947 INFO L791 eck$LassoCheckResult]: Stem: 1265#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 1267#L369 assume !(main_~length~0#1 < 1); 1268#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 1278#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1279#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1281#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1261#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1262#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1280#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1292#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1294#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1293#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1282#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1283#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1284#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1291#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1290#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 1277#L372-4 main_~j~0#1 := 0; 1269#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1270#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1288#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1263#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1264#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1271#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1287#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1286#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1285#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1273#L380-3 [2021-12-14 23:08:43,947 INFO L793 eck$LassoCheckResult]: Loop: 1273#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1272#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 1273#L380-3 [2021-12-14 23:08:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash -759828824, now seen corresponding path program 5 times [2021-12-14 23:08:43,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:43,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022395155] [2021-12-14 23:08:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:43,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,972 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 5 times [2021-12-14 23:08:43,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503180801] [2021-12-14 23:08:43,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:43,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,978 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -51058003, now seen corresponding path program 2 times [2021-12-14 23:08:43,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:08:43,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15264250] [2021-12-14 23:08:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:08:43,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:08:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:43,996 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:08:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:08:44,028 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:08:44,473 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:08:44,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:08:44,473 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:08:44,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:08:44,473 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:08:44,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:44,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:08:44,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:08:44,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration8_Lasso [2021-12-14 23:08:44,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:08:44,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:08:44,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:08:44,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:08:44,944 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:08:44,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:44,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:44,945 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) [2021-12-14 23:08:44,946 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 [2021-12-14 23:08:44,947 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 [2021-12-14 23:08:44,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:44,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:44,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:44,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:44,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:44,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:44,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:44,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:44,978 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 [2021-12-14 23:08:44,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:44,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:44,979 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) [2021-12-14 23:08:44,980 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 [2021-12-14 23:08:44,981 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 [2021-12-14 23:08:44,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:44,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:08:44,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:44,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:44,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:44,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:08:44,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:08:44,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:45,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:45,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:45,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:45,005 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) [2021-12-14 23:08:45,006 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 [2021-12-14 23:08:45,007 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 [2021-12-14 23:08:45,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:45,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:45,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:45,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:45,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:45,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:45,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:08:45,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:45,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:45,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:45,066 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) [2021-12-14 23:08:45,071 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 [2021-12-14 23:08:45,072 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 [2021-12-14 23:08:45,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:08:45,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:08:45,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:08:45,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:08:45,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:08:45,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:08:45,107 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:08:45,130 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-14 23:08:45,130 INFO L444 ModelExtractionUtils]: 5 out of 28 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-12-14 23:08:45,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:08:45,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:08:45,132 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) [2021-12-14 23:08:45,134 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:08:45,142 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 [2021-12-14 23:08:45,160 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:08:45,160 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:08:45,160 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0#1, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_4) = 1*ULTIMATE.start_main_~limit~0#1 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_4 Supporting invariants [] [2021-12-14 23:08:45,184 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 [2021-12-14 23:08:45,217 INFO L297 tatePredicateManager]: 18 out of 18 supporting invariants were superfluous and have been removed [2021-12-14 23:08:45,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:45,311 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 [2021-12-14 23:08:45,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,322 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 37 states and 45 transitions. Complement of second has 7 states. [2021-12-14 23:08:45,322 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 [2021-12-14 23:08:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-14 23:08:45,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 2 letters. [2021-12-14 23:08:45,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:45,323 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:08:45,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,437 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 [2021-12-14 23:08:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:45,445 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 [2021-12-14 23:08:45,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 37 states and 45 transitions. Complement of second has 7 states. [2021-12-14 23:08:45,456 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 [2021-12-14 23:08:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-14 23:08:45,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 2 letters. [2021-12-14 23:08:45,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:45,458 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-14 23:08:45,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:08:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:08:45,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 23:08:45,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:08:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:08:45,541 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 [2021-12-14 23:08:45,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,553 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 43 states and 53 transitions. Complement of second has 6 states. [2021-12-14 23:08:45,554 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 [2021-12-14 23:08:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-14 23:08:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-12-14 23:08:45,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 28 letters. Loop has 2 letters. [2021-12-14 23:08:45,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:45,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 30 letters. Loop has 2 letters. [2021-12-14 23:08:45,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:45,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 28 letters. Loop has 4 letters. [2021-12-14 23:08:45,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:08:45,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 53 transitions. [2021-12-14 23:08:45,560 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:08:45,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 0 states and 0 transitions. [2021-12-14 23:08:45,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:08:45,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:08:45,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:08:45,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:08:45,561 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:08:45,561 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:08:45,561 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:08:45,561 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-14 23:08:45,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:08:45,561 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:08:45,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:08:45,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:08:45 BoogieIcfgContainer [2021-12-14 23:08:45,567 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:08:45,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:08:45,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:08:45,568 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:08:45,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:08:36" (3/4) ... [2021-12-14 23:08:45,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:08:45,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:08:45,576 INFO L158 Benchmark]: Toolchain (without parser) took 9589.11ms. Allocated memory was 86.0MB in the beginning and 138.4MB in the end (delta: 52.4MB). Free memory was 52.3MB in the beginning and 96.2MB in the end (delta: -43.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-14 23:08:45,576 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:08:45,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.45ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 52.1MB in the beginning and 79.0MB in the end (delta: -26.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 23:08:45,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.94ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:08:45,577 INFO L158 Benchmark]: Boogie Preprocessor took 36.52ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 916.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:08:45,577 INFO L158 Benchmark]: RCFGBuilder took 221.37ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 66.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:08:45,577 INFO L158 Benchmark]: BuchiAutomizer took 8891.75ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 96.2MB in the end (delta: -30.0MB). Peak memory consumption was 363.7kB. Max. memory is 16.1GB. [2021-12-14 23:08:45,578 INFO L158 Benchmark]: Witness Printer took 6.92ms. Allocated memory is still 138.4MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:08:45,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.45ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 52.1MB in the beginning and 79.0MB in the end (delta: -26.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.94ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.52ms. Allocated memory is still 111.1MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 916.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 221.37ms. Allocated memory is still 111.1MB. Free memory was 76.0MB in the beginning and 66.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8891.75ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 96.2MB in the end (delta: -30.0MB). Peak memory consumption was 363.7kB. Max. memory is 16.1GB. * Witness Printer took 6.92ms. Allocated memory is still 138.4MB. Free memory is still 96.2MB. 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 8 terminating modules (3 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * i and consists of 6 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * j + -1 * arr and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][arr] + limit and consists of 5 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][arr + 4] + limit and consists of 7 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][arr + j * 4] and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.8s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 6.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 34 states and ocurred in iteration 7. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 186 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 317 IncrementalHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 151 mSDtfsCounter, 317 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital138 mio100 ax100 hnf99 lsp95 ukn88 mio100 lsp50 div100 bol100 ite100 ukn100 eq173 hnf90 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-14 23:08:45,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:45,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-12-14 23:08:46,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE