./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/NetBSD_loop.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 b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:49:27,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:49:27,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:49:27,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:49:27,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:49:27,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:49:27,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:49:27,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:49:27,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:49:27,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:49:27,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:49:27,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:49:27,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:49:27,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:49:27,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:49:27,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:49:27,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:49:27,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:49:27,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:49:27,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:49:27,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:49:27,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:49:27,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:49:27,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:49:27,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:49:27,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:49:27,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:49:27,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:49:27,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:49:27,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:49:27,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:49:27,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:49:27,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:49:27,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:49:27,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:49:27,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:49:27,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:49:27,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:49:27,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:49:27,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:49:27,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:49:27,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:49:27,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:49:27,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:49:27,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:49:27,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:49:27,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:49:27,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:49:27,618 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:49:27,618 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:49:27,618 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:49:27,618 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:49:27,619 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:49:27,619 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:49:27,619 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:49:27,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:49:27,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:49:27,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:49:27,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:49:27,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:49:27,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:49:27,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:49:27,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:49:27,623 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:49:27,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d [2021-12-16 09:49:27,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:49:27,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:49:27,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:49:27,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:49:27,807 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:49:27,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-12-16 09:49:27,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6bd7bf25/665100edb9d04773b1904be49bed7321/FLAGf2c2aeff3 [2021-12-16 09:49:28,166 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:49:28,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-12-16 09:49:28,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6bd7bf25/665100edb9d04773b1904be49bed7321/FLAGf2c2aeff3 [2021-12-16 09:49:28,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6bd7bf25/665100edb9d04773b1904be49bed7321 [2021-12-16 09:49:28,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:49:28,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:49:28,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:49:28,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:49:28,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:49:28,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59460adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28, skipping insertion in model container [2021-12-16 09:49:28,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:49:28,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:49:28,743 WARN L230 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-invgen/NetBSD_loop.i[893,906] [2021-12-16 09:49:28,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:49:28,756 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:49:28,763 WARN L230 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-invgen/NetBSD_loop.i[893,906] [2021-12-16 09:49:28,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:49:28,774 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:49:28,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28 WrapperNode [2021-12-16 09:49:28,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:49:28,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:49:28,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:49:28,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:49:28,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,798 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2021-12-16 09:49:28,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:49:28,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:49:28,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:49:28,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:49:28,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:49:28,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:49:28,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:49:28,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:49:28,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (1/1) ... [2021-12-16 09:49:28,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:28,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:28,843 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) [2021-12-16 09:49:28,850 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 [2021-12-16 09:49:28,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:49:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:49:28,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:49:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:49:28,917 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:49:28,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:49:28,998 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:49:29,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:49:29,002 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:49:29,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:29 BoogieIcfgContainer [2021-12-16 09:49:29,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:49:29,004 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:49:29,004 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:49:29,006 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:49:29,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:29,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:49:28" (1/3) ... [2021-12-16 09:49:29,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f337ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:49:29, skipping insertion in model container [2021-12-16 09:49:29,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:29,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:49:28" (2/3) ... [2021-12-16 09:49:29,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f337ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:49:29, skipping insertion in model container [2021-12-16 09:49:29,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:49:29,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:29" (3/3) ... [2021-12-16 09:49:29,009 INFO L388 chiAutomizerObserver]: Analyzing ICFG NetBSD_loop.i [2021-12-16 09:49:29,036 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:49:29,036 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:49:29,036 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:49:29,036 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:49:29,036 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:49:29,036 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:49:29,036 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:49:29,036 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:49:29,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2021-12-16 09:49:29,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-16 09:49:29,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:49:29,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:49:29,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:49:29,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:49:29,062 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:49:29,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2021-12-16 09:49:29,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-16 09:49:29,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:49:29,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:49:29,063 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-16 09:49:29,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:49:29,067 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~MAXPATHLEN~0#1, main_~pathbuf_off~0#1, main_~bound_off~0#1, main_~glob2_p_off~0#1, main_~glob2_pathbuf_off~0#1, main_~glob2_pathlim_off~0#1;havoc main_~MAXPATHLEN~0#1;havoc main_~pathbuf_off~0#1;havoc main_~bound_off~0#1;havoc main_~glob2_p_off~0#1;havoc main_~glob2_pathbuf_off~0#1;havoc main_~glob2_pathlim_off~0#1;main_~MAXPATHLEN~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L33true assume main_~MAXPATHLEN~0#1 > 0 && main_~MAXPATHLEN~0#1 < 2147483647; 8#L33-1true main_~pathbuf_off~0#1 := 0;main_~bound_off~0#1 := main_~pathbuf_off~0#1 + (1 + main_~MAXPATHLEN~0#1) - 1;main_~glob2_pathbuf_off~0#1 := main_~pathbuf_off~0#1;main_~glob2_pathlim_off~0#1 := main_~bound_off~0#1;main_~glob2_p_off~0#1 := main_~glob2_pathbuf_off~0#1; 6#L38-3true [2021-12-16 09:49:29,068 INFO L793 eck$LassoCheckResult]: Loop: 6#L38-3true assume !!(main_~glob2_p_off~0#1 <= main_~glob2_pathlim_off~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~glob2_p_off~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 14#L18true assume !(0 == __VERIFIER_assert_~cond#1); 15#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~glob2_p_off~0#1 < 1 + main_~MAXPATHLEN~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 7#L18-5true assume { :end_inline___VERIFIER_assert } true; 13#L38-2true main_#t~post2#1 := main_~glob2_p_off~0#1;main_~glob2_p_off~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 6#L38-3true [2021-12-16 09:49:29,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-12-16 09:49:29,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:29,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396617529] [2021-12-16 09:49:29,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:29,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,124 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:29,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1397201969, now seen corresponding path program 1 times [2021-12-16 09:49:29,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:29,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407573503] [2021-12-16 09:49:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:29,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:29,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1085479081, now seen corresponding path program 1 times [2021-12-16 09:49:29,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:49:29,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373717688] [2021-12-16 09:49:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:49:29,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:49:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:49:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:49:29,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:49:29,336 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:49:29,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:49:29,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:49:29,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:49:29,337 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 09:49:29,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,337 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:49:29,337 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:49:29,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2021-12-16 09:49:29,338 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:49:29,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:49:29,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:49:29,409 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 09:49:29,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,421 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) [2021-12-16 09:49:29,422 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 [2021-12-16 09:49:29,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:49:29,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:29,449 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 09:49:29,450 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 09:49:29,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-16 09:49:29,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,470 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) [2021-12-16 09:49:29,471 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 [2021-12-16 09:49:29,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 09:49:29,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:29,507 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 [2021-12-16 09:49:29,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,508 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) [2021-12-16 09:49:29,509 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 [2021-12-16 09:49:29,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 09:49:29,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 09:49:29,583 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 09:49:29,591 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 [2021-12-16 09:49:29,591 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:49:29,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:49:29,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:49:29,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:49:29,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:49:29,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:49:29,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:49:29,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2021-12-16 09:49:29,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:49:29,592 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:49:29,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:49:29,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:49:29,663 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:49:29,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,665 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) [2021-12-16 09:49:29,666 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 [2021-12-16 09:49:29,668 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 [2021-12-16 09:49:29,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:49:29,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:49:29,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:49:29,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:49:29,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:49:29,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:49:29,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:49:29,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:49:29,699 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 [2021-12-16 09:49:29,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,700 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) [2021-12-16 09:49:29,701 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 [2021-12-16 09:49:29,702 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 [2021-12-16 09:49:29,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:49:29,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:49:29,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:49:29,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:49:29,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:49:29,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:49:29,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:49:29,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:49:29,742 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 09:49:29,742 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-16 09:49:29,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:49:29,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:49:29,745 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) [2021-12-16 09:49:29,745 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 [2021-12-16 09:49:29,768 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:49:29,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 09:49:29,768 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:49:29,769 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~glob2_p_off~0#1, ULTIMATE.start_main_~MAXPATHLEN~0#1) = -2*ULTIMATE.start_main_~glob2_p_off~0#1 + 2*ULTIMATE.start_main_~MAXPATHLEN~0#1 + 1 Supporting invariants [] [2021-12-16 09:49:29,784 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 [2021-12-16 09:49:29,786 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 09:49:29,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:49:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:49:29,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:49:29,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:49:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:49:29,849 WARN L261 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:49:29,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:49:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:49:29,965 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-16 09:49:29,966 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:49:30,034 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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). Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 9 states. [2021-12-16 09:49:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-16 09:49:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:49:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2021-12-16 09:49:30,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-16 09:49:30,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:30,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-16 09:49:30,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:30,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 4 letters. Loop has 12 letters. [2021-12-16 09:49:30,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:49:30,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-12-16 09:49:30,054 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:49:30,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2021-12-16 09:49:30,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:49:30,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:49:30,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:49:30,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:49:30,057 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:30,057 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:30,057 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:49:30,058 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:49:30,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:49:30,058 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:49:30,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:49:30,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:49:30 BoogieIcfgContainer [2021-12-16 09:49:30,064 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:49:30,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:49:30,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:49:30,066 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:49:30,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:49:29" (3/4) ... [2021-12-16 09:49:30,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:49:30,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:49:30,088 INFO L158 Benchmark]: Toolchain (without parser) took 1477.62ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 86.7MB in the end (delta: -31.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,089 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:49:30,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.05ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 64.5MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.23ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 63.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,094 INFO L158 Benchmark]: Boogie Preprocessor took 20.94ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 62.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:49:30,095 INFO L158 Benchmark]: RCFGBuilder took 183.55ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 53.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,095 INFO L158 Benchmark]: BuchiAutomizer took 1060.18ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 53.3MB in the beginning and 53.1MB in the end (delta: 258.3kB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,096 INFO L158 Benchmark]: Witness Printer took 6.40ms. Allocated memory is still 111.1MB. Free memory was 53.1MB in the beginning and 87.0MB in the end (delta: -33.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-12-16 09:49:30,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 44.4MB in the beginning and 44.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.05ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 64.5MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.23ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 63.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.94ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 62.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 183.55ms. Allocated memory is still 88.1MB. Free memory was 62.0MB in the beginning and 53.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1060.18ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 53.3MB in the beginning and 53.1MB in the end (delta: 258.3kB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 6.40ms. Allocated memory is still 111.1MB. Free memory was 53.1MB in the beginning and 87.0MB in the end (delta: -33.9MB). Peak memory consumption was 3.0MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * glob2_p_off + 2 * MAXPATHLEN + 1 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf95 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2021-12-16 09:49:30,115 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 [2021-12-16 09:49:30,333 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