./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/count_by_1_variant.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 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:21:11,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:21:11,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:21:11,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:21:11,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:21:11,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:21:11,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:21:11,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:21:11,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:21:11,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:21:11,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:21:11,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:21:11,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:21:11,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:21:11,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:21:11,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:21:11,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:21:11,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:21:11,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:21:11,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:21:11,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:21:11,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:21:11,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:21:11,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:21:11,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:21:12,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:21:12,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:21:12,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:21:12,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:21:12,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:21:12,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:21:12,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:21:12,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:21:12,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:21:12,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:21:12,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:21:12,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:21:12,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:21:12,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:21:12,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:21:12,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:21:12,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:21:12,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:21:12,044 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:21:12,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:21:12,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:21:12,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:21:12,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:21:12,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:21:12,046 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:21:12,046 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:21:12,046 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:21:12,047 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:21:12,047 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:21:12,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:21:12,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:21:12,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:21:12,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:21:12,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:21:12,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:21:12,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:21:12,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:21:12,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:21:12,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:21:12,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:21:12,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2022-07-22 02:21:12,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:21:12,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:21:12,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:21:12,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:21:12,351 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:21:12,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-07-22 02:21:12,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecfacd79/79aadf0ee2a44ef0b3dc96322c919a39/FLAG333fbe50d [2022-07-22 02:21:12,833 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:21:12,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-07-22 02:21:12,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecfacd79/79aadf0ee2a44ef0b3dc96322c919a39/FLAG333fbe50d [2022-07-22 02:21:13,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecfacd79/79aadf0ee2a44ef0b3dc96322c919a39 [2022-07-22 02:21:13,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:21:13,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:21:13,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:21:13,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:21:13,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:21:13,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b23a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13, skipping insertion in model container [2022-07-22 02:21:13,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:21:13,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:21:13,364 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-new/count_by_1_variant.i[891,904] [2022-07-22 02:21:13,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:21:13,377 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:21:13,385 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-new/count_by_1_variant.i[891,904] [2022-07-22 02:21:13,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:21:13,404 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:21:13,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13 WrapperNode [2022-07-22 02:21:13,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:21:13,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:21:13,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:21:13,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:21:13,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,432 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-07-22 02:21:13,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:21:13,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:21:13,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:21:13,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:21:13,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:21:13,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:21:13,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:21:13,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:21:13,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (1/1) ... [2022-07-22 02:21:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:13,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:13,487 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) [2022-07-22 02:21:13,496 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 [2022-07-22 02:21:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:21:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:21:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:21:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:21:13,584 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:21:13,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:21:13,678 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:21:13,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:21:13,683 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 02:21:13,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:21:13 BoogieIcfgContainer [2022-07-22 02:21:13,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:21:13,686 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:21:13,686 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:21:13,688 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:21:13,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:21:13,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:21:13" (1/3) ... [2022-07-22 02:21:13,690 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e086052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:21:13, skipping insertion in model container [2022-07-22 02:21:13,690 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:21:13,690 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:21:13" (2/3) ... [2022-07-22 02:21:13,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e086052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:21:13, skipping insertion in model container [2022-07-22 02:21:13,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:21:13,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:21:13" (3/3) ... [2022-07-22 02:21:13,692 INFO L354 chiAutomizerObserver]: Analyzing ICFG count_by_1_variant.i [2022-07-22 02:21:13,750 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:21:13,750 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:21:13,750 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:21:13,750 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:21:13,751 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:21:13,751 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:21:13,751 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:21:13,751 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:21:13,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:21:13,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:21:13,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:21:13,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:21:13,780 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:21:13,780 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 02:21:13,781 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:21:13,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:21:13,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:21:13,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:21:13,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:21:13,782 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 02:21:13,783 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 02:21:13,788 INFO L752 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); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 11#L26-3true [2022-07-22 02:21:13,788 INFO L754 eck$LassoCheckResult]: Loop: 11#L26-3true assume !!(1000000 != main_~i~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~i~0#1 <= 1000000 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 3#L18true assume !(0 == __VERIFIER_assert_~cond#1); 5#L18-2true assume { :end_inline___VERIFIER_assert } true; 7#L26-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 11#L26-3true [2022-07-22 02:21:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:21:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 02:21:13,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:21:13,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909868587] [2022-07-22 02:21:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:21:13,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:21:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:21:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:21:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:21:13,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1238410, now seen corresponding path program 1 times [2022-07-22 02:21:13,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:21:13,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530091386] [2022-07-22 02:21:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:21:13,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:21:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,915 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:21:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:21:13,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:21:13,934 INFO L85 PathProgramCache]: Analyzing trace with hash 889665612, now seen corresponding path program 1 times [2022-07-22 02:21:13,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:21:13,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157082378] [2022-07-22 02:21:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:21:13,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:21:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:21:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:21:13,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:21:14,070 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:21:14,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:21:14,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:21:14,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:21:14,071 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:21:14,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:21:14,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:21:14,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2022-07-22 02:21:14,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:21:14,071 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:21:14,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,173 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:21:14,173 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:21:14,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,176 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) [2022-07-22 02:21:14,177 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 [2022-07-22 02:21:14,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:21:14,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:21:14,198 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:21:14,198 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:21:14,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 02:21:14,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,215 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) [2022-07-22 02:21:14,216 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 [2022-07-22 02:21:14,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:21:14,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:21:14,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-22 02:21:14,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,256 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) [2022-07-22 02:21:14,257 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 [2022-07-22 02:21:14,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:21:14,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:21:14,285 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:21:14,291 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 [2022-07-22 02:21:14,291 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:21:14,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:21:14,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:21:14,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:21:14,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:21:14,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:21:14,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:21:14,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2022-07-22 02:21:14,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:21:14,291 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:21:14,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:21:14,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:21:14,364 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:21:14,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,366 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) [2022-07-22 02:21:14,367 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 [2022-07-22 02:21:14,368 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 [2022-07-22 02:21:14,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:21:14,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:21:14,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:21:14,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:21:14,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:21:14,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:21:14,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:21:14,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:21:14,411 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 [2022-07-22 02:21:14,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,413 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) [2022-07-22 02:21:14,416 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 [2022-07-22 02:21:14,417 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 [2022-07-22 02:21:14,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:21:14,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:21:14,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:21:14,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:21:14,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:21:14,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:21:14,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:21:14,438 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:21:14,441 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:21:14,441 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:21:14,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:21:14,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:21:14,443 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) [2022-07-22 02:21:14,444 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 [2022-07-22 02:21:14,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:21:14,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:21:14,445 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:21:14,445 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1999999 Supporting invariants [] [2022-07-22 02:21:14,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-22 02:21:14,463 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:21:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:21:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:21:14,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:21:14,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:21:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:21:14,515 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 02:21:14,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:21:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:21:14,644 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 [2022-07-22 02:21:14,645 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:21:14,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-22 02:21:14,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 37 transitions. Complement of second has 9 states. [2022-07-22 02:21:14,726 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 [2022-07-22 02:21:14,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:21:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2022-07-22 02:21:14,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-22 02:21:14,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:21:14,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-22 02:21:14,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:21:14,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-22 02:21:14,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:21:14,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2022-07-22 02:21:14,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:21:14,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2022-07-22 02:21:14,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:21:14,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:21:14,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:21:14,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:21:14,741 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:21:14,741 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:21:14,741 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:21:14,741 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:21:14,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:21:14,741 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:21:14,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:21:14,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:21:14 BoogieIcfgContainer [2022-07-22 02:21:14,747 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:21:14,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:21:14,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:21:14,748 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:21:14,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:21:13" (3/4) ... [2022-07-22 02:21:14,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:21:14,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:21:14,752 INFO L158 Benchmark]: Toolchain (without parser) took 1525.84ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 48.2MB in the beginning and 65.8MB in the end (delta: -17.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-07-22 02:21:14,753 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:21:14,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.69ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 38.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:21:14,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.78ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 36.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:21:14,758 INFO L158 Benchmark]: Boogie Preprocessor took 24.00ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 35.9MB in the end (delta: 858.8kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:21:14,759 INFO L158 Benchmark]: RCFGBuilder took 225.81ms. Allocated memory is still 67.1MB. Free memory was 35.9MB in the beginning and 45.6MB in the end (delta: -9.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-22 02:21:14,760 INFO L158 Benchmark]: BuchiAutomizer took 1061.50ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 45.3MB in the beginning and 65.8MB in the end (delta: -20.5MB). Peak memory consumption was 759.9kB. Max. memory is 16.1GB. [2022-07-22 02:21:14,760 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 88.1MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:21:14,765 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 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.69ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 38.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.78ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 36.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.00ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 35.9MB in the end (delta: 858.8kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 225.81ms. Allocated memory is still 67.1MB. Free memory was 35.9MB in the beginning and 45.6MB in the end (delta: -9.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 1061.50ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 45.3MB in the beginning and 65.8MB in the end (delta: -20.5MB). Peak memory consumption was 759.9kB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 88.1MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 1999999 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:21:14,792 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