./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/loop-new/gauss_sum.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 900dc8888580ebedbb327649d929719e765fe641 ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:22:57,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:22:57,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:22:57,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:22:57,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:22:57,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:22:57,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:22:57,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:22:57,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:22:57,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:22:57,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:22:57,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:22:57,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:22:57,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:22:57,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:22:57,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:22:57,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:22:57,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:22:57,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:22:57,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:22:57,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:22:57,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:22:57,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:22:57,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:22:57,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:22:57,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:22:57,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:22:57,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:22:57,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:22:57,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:22:57,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:22:57,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:22:57,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:22:57,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:22:57,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:22:57,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:22:57,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:22:57,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:22:57,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:22:57,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:22:57,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:22:57,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:22:57,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:22:57,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:22:57,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:22:57,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:22:57,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:22:57,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:22:57,623 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:22:57,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:22:57,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:22:57,623 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:22:57,623 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:22:57,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:22:57,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:22:57,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:22:57,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:22:57,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:22:57,626 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:22:57,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900dc8888580ebedbb327649d929719e765fe641 [2021-08-27 15:22:57,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:22:57,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:22:57,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:22:57,896 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:22:57,896 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:22:57,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/gauss_sum.i [2021-08-27 15:22:57,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f612da3/6672cf5cfe5041dbad860184df53e4bb/FLAG3f7468313 [2021-08-27 15:22:58,316 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:22:58,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i [2021-08-27 15:22:58,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f612da3/6672cf5cfe5041dbad860184df53e4bb/FLAG3f7468313 [2021-08-27 15:22:58,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f612da3/6672cf5cfe5041dbad860184df53e4bb [2021-08-27 15:22:58,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:22:58,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:22:58,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:22:58,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:22:58,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:22:58,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5d68a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58, skipping insertion in model container [2021-08-27 15:22:58,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:22:58,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:22:58,474 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-08-27 15:22:58,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:22:58,491 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:22:58,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i[891,904] [2021-08-27 15:22:58,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:22:58,544 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:22:58,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58 WrapperNode [2021-08-27 15:22:58,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:22:58,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:22:58,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:22:58,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:22:58,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:22:58,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:22:58,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:22:58,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:22:58,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:22:58,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:22:58,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:22:58,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:22:58,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (1/1) ... [2021-08-27 15:22:58,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:58,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:58,618 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) [2021-08-27 15:22:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:22:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:22:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:22:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:22:58,652 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 [2021-08-27 15:22:58,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:22:58,798 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-27 15:22:58,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:58 BoogieIcfgContainer [2021-08-27 15:22:58,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:22:58,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:22:58,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:22:58,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:22:58,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:58,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:22:58" (1/3) ... [2021-08-27 15:22:58,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce29294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:22:58, skipping insertion in model container [2021-08-27 15:22:58,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:58,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:22:58" (2/3) ... [2021-08-27 15:22:58,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ce29294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:22:58, skipping insertion in model container [2021-08-27 15:22:58,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:22:58,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:58" (3/3) ... [2021-08-27 15:22:58,807 INFO L389 chiAutomizerObserver]: Analyzing ICFG gauss_sum.i [2021-08-27 15:22:58,855 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:22:58,855 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:22:58,855 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:22:58,855 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:22:58,855 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:22:58,855 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:22:58,855 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:22:58,855 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:22:58,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2021-08-27 15:22:58,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:22:58,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:58,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:58,877 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 15:22:58,877 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:22:58,877 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:22:58,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) [2021-08-27 15:22:58,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:22:58,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:22:58,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:22:58,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 15:22:58,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:22:58,883 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~n~0, main_~sum~0, main_~i~0;havoc main_~n~0;havoc main_~sum~0;havoc main_~i~0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L27true assume !!(1 <= main_~n~0 && main_~n~0 <= 1000);main_~sum~0 := 0;main_~i~0 := 1; 6#L29-3true [2021-08-27 15:22:58,883 INFO L793 eck$LassoCheckResult]: Loop: 6#L29-3true assume !!(main_~i~0 <= main_~n~0);main_~sum~0 := main_~sum~0 + main_~i~0; 14#L29-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 6#L29-3true [2021-08-27 15:22:58,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:58,896 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-08-27 15:22:58,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:58,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767590110] [2021-08-27 15:22:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:58,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:58,954 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:58,974 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:58,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-08-27 15:22:58,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:58,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954683061] [2021-08-27 15:22:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:58,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:58,980 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:58,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:58,988 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-08-27 15:22:58,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:22:58,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256686301] [2021-08-27 15:22:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:22:58,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:22:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:58,998 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:22:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:22:59,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:22:59,085 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:59,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:59,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:59,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:59,085 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:22:59,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:59,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:59,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-08-27 15:22:59,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:59,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:59,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:59,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:59,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:59,157 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:22:59,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:59,160 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) [2021-08-27 15:22:59,161 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 [2021-08-27 15:22:59,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:22:59,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:59,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:22:59,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:59,200 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) [2021-08-27 15:22:59,201 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 [2021-08-27 15:22:59,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:22:59,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:22:59,301 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:22:59,307 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 [2021-08-27 15:22:59,307 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:22:59,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:22:59,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:22:59,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:22:59,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:22:59,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:22:59,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:22:59,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: gauss_sum.i_Iteration1_Loop [2021-08-27 15:22:59,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:22:59,308 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:22:59,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:59,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:22:59,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:22:59,353 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:22:59,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:59,357 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) [2021-08-27 15:22:59,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:22:59,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:22:59,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:22:59,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:22:59,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:22:59,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:22:59,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:22:59,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:22:59,391 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 [2021-08-27 15:22:59,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:22:59,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:22:59,410 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:22:59,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:22:59,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:22:59,412 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) [2021-08-27 15:22:59,413 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 [2021-08-27 15:22:59,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:22:59,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:22:59,419 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:22:59,419 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~n~0 - 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2021-08-27 15:22:59,436 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 [2021-08-27 15:22:59,438 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:22:59,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:22:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:59,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:22:59,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:22:59,501 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:22:59,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:22:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:22:59,537 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 [2021-08-27 15:22:59,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-27 15:22:59,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 31 states and 37 transitions. Complement of second has 7 states. [2021-08-27 15:22:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:22:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-27 15:22:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-08-27 15:22:59,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 15:22:59,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:59,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 15:22:59,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:59,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-27 15:22:59,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:22:59,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-08-27 15:22:59,582 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:22:59,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-08-27 15:22:59,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:22:59,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:22:59,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:22:59,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:22:59,585 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:59,585 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:59,585 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:22:59,585 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:22:59,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:22:59,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:22:59,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:22:59,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:22:59 BoogieIcfgContainer [2021-08-27 15:22:59,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:22:59,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:22:59,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:22:59,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:22:59,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:22:58" (3/4) ... [2021-08-27 15:22:59,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:22:59,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:22:59,595 INFO L168 Benchmark]: Toolchain (without parser) took 1255.16 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 43.2 MB in the beginning and 33.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:59,596 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:59,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.76 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:59,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 62.9 MB. Free memory was 46.0 MB in the beginning and 44.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:59,597 INFO L168 Benchmark]: Boogie Preprocessor took 27.85 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 43.7 MB in the end (delta: 862.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:59,598 INFO L168 Benchmark]: RCFGBuilder took 201.96 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 32.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:59,602 INFO L168 Benchmark]: BuchiAutomizer took 789.51 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 32.7 MB in the beginning and 34.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:22:59,602 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 81.8 MB. Free memory was 34.3 MB in the beginning and 33.8 MB in the end (delta: 553.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:22:59,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 43.6 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 204.76 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.33 ms. Allocated memory is still 62.9 MB. Free memory was 46.0 MB in the beginning and 44.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.85 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 43.7 MB in the end (delta: 862.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 201.96 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 32.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 789.51 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 32.7 MB in the beginning and 34.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Witness Printer took 2.72 ms. Allocated memory is still 81.8 MB. Free memory was 34.3 MB in the beginning and 33.8 MB in the end (delta: 553.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -2 * i + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 64ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:22:59,634 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 [2021-08-27 15:22:59,843 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...