./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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-dev-03d7b7b [2022-02-21 04:00:08,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:00:08,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:00:08,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:00:08,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:00:08,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:00:08,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:00:08,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:00:08,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:00:08,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:00:08,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:00:08,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:00:08,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:00:08,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:00:08,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:00:08,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:00:08,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:00:08,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:00:08,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:00:08,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:00:08,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:00:08,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:00:08,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:00:08,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:00:08,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:00:08,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:00:08,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:00:08,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:00:08,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:00:08,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:00:08,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:00:08,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:00:08,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:00:08,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:00:08,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:00:08,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:00:08,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:00:08,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:00:08,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:00:08,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:00:08,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:00:08,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:00:08,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:00:08,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:00:08,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:00:08,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:00:08,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:00:08,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:00:08,409 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:00:08,409 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:00:08,410 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:00:08,410 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:00:08,410 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:00:08,410 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:00:08,411 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:00:08,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:00:08,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:00:08,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:00:08,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:00:08,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:00:08,413 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:00:08,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:00:08,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:00:08,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:00:08,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:00:08,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:00:08,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:00:08,415 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:00:08,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8873a5afb79ec0e8798e8f1423b386b30ed09073bcea97b4a19d8bc56ced7206 [2022-02-21 04:00:08,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:00:08,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:00:08,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:00:08,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:00:08,671 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:00:08,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-02-21 04:00:08,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4088d57/3117acec13e34413913cc36caab456eb/FLAG9b2e6a09d [2022-02-21 04:00:09,268 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:00:09,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/count_by_1_variant.i [2022-02-21 04:00:09,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4088d57/3117acec13e34413913cc36caab456eb/FLAG9b2e6a09d [2022-02-21 04:00:09,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4088d57/3117acec13e34413913cc36caab456eb [2022-02-21 04:00:09,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:00:09,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:00:09,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:00:09,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:00:09,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:00:09,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac09022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09, skipping insertion in model container [2022-02-21 04:00:09,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:00:09,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:00:09,895 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] [2022-02-21 04:00:09,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:00:09,923 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:00:09,934 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] [2022-02-21 04:00:09,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:00:09,947 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:00:09,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09 WrapperNode [2022-02-21 04:00:09,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:00:09,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:00:09,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:00:09,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:00:09,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,976 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-02-21 04:00:09,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:00:09,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:00:09,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:00:09,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:00:09,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:09,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:00:09,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:00:09,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:00:09,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:00:10,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (1/1) ... [2022-02-21 04:00:10,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:10,026 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) [2022-02-21 04:00:10,046 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 [2022-02-21 04:00:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:00:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:00:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:00:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:00:10,108 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:00:10,109 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:00:10,176 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:00:10,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:00:10,181 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 04:00:10,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:00:10 BoogieIcfgContainer [2022-02-21 04:00:10,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:00:10,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:00:10,184 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:00:10,186 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:00:10,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:00:10,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:00:09" (1/3) ... [2022-02-21 04:00:10,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51dcda1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:00:10, skipping insertion in model container [2022-02-21 04:00:10,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:00:10,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:00:09" (2/3) ... [2022-02-21 04:00:10,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51dcda1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:00:10, skipping insertion in model container [2022-02-21 04:00:10,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:00:10,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:00:10" (3/3) ... [2022-02-21 04:00:10,190 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_by_1_variant.i [2022-02-21 04:00:10,222 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:00:10,222 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:00:10,223 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:00:10,223 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:00:10,223 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:00:10,223 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:00:10,223 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:00:10,223 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:00:10,234 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) [2022-02-21 04:00:10,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-02-21 04:00:10,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:00:10,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:00:10,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 04:00:10,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-02-21 04:00:10,253 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:00:10,253 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) [2022-02-21 04:00:10,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-02-21 04:00:10,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:00:10,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:00:10,255 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 04:00:10,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-02-21 04:00:10,260 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;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); 10#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; 12#L26-3true [2022-02-21 04:00:10,261 INFO L793 eck$LassoCheckResult]: Loop: 12#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; 4#L18true assume !(0 == __VERIFIER_assert_~cond#1); 6#L18-2true assume { :end_inline___VERIFIER_assert } true; 8#L26-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 12#L26-3true [2022-02-21 04:00:10,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:00:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 04:00:10,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:00:10,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563208704] [2022-02-21 04:00:10,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:00:10,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:00:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,336 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:00:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,353 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:00:10,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:00:10,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1238410, now seen corresponding path program 1 times [2022-02-21 04:00:10,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:00:10,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484268071] [2022-02-21 04:00:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:00:10,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:00:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:00:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,408 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:00:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:00:10,418 INFO L85 PathProgramCache]: Analyzing trace with hash 889665612, now seen corresponding path program 1 times [2022-02-21 04:00:10,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:00:10,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226242626] [2022-02-21 04:00:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:00:10,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:00:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:00:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:00:10,454 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:00:10,606 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 04:00:10,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 04:00:10,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 04:00:10,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 04:00:10,607 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 04:00:10,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 04:00:10,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 04:00:10,607 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2022-02-21 04:00:10,607 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 04:00:10,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 04:00:10,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:10,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:10,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:10,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 04:00:10,759 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 04:00:10,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:10,762 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) [2022-02-21 04:00:10,771 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 [2022-02-21 04:00:10,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 04:00:10,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 04:00:10,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 04:00:10,796 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: [] [2022-02-21 04:00:10,814 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 [2022-02-21 04:00:10,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:10,816 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) [2022-02-21 04:00:10,817 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 [2022-02-21 04:00:10,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 04:00:10,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 04:00:10,887 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 [2022-02-21 04:00:10,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:10,893 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) [2022-02-21 04:00:10,894 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 [2022-02-21 04:00:10,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 04:00:10,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 04:00:10,949 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 04:00:10,959 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 [2022-02-21 04:00:10,960 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 04:00:10,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 04:00:10,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 04:00:10,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 04:00:10,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 04:00:10,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:10,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 04:00:10,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 04:00:10,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_1_variant.i_Iteration1_Loop [2022-02-21 04:00:10,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 04:00:10,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 04:00:10,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:10,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:10,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 04:00:11,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 04:00:11,118 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 04:00:11,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:11,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:11,134 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) [2022-02-21 04:00:11,152 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 [2022-02-21 04:00:11,152 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 [2022-02-21 04:00:11,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 04:00:11,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 04:00:11,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 04:00:11,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 04:00:11,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 04:00:11,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 04:00:11,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 04:00:11,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 04:00:11,188 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 [2022-02-21 04:00:11,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:11,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:11,190 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) [2022-02-21 04:00:11,191 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 [2022-02-21 04:00:11,193 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 [2022-02-21 04:00:11,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 04:00:11,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 04:00:11,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 04:00:11,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 04:00:11,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 04:00:11,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 04:00:11,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 04:00:11,203 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 04:00:11,219 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 04:00:11,219 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 04:00:11,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:00:11,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:00:11,222 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) [2022-02-21 04:00:11,227 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 [2022-02-21 04:00:11,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 04:00:11,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 04:00:11,230 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 04:00:11,230 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 [] [2022-02-21 04:00:11,247 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 [2022-02-21 04:00:11,256 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 04:00:11,280 INFO L390 LassoCheck]: Loop: "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;" "assume !(0 == __VERIFIER_assert_~cond#1);" "assume { :end_inline___VERIFIER_assert } true;" "main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;" [2022-02-21 04:00:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:00:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:00:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:00:11,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 04:00:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:00:11,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 04:00:11,391 INFO L290 TraceCheckUtils]: 0: Hoare triple {21#unseeded} 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); {21#unseeded} is VALID [2022-02-21 04:00:11,392 INFO L290 TraceCheckUtils]: 1: Hoare triple {21#unseeded} 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; {21#unseeded} is VALID [2022-02-21 04:00:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:00:11,401 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-21 04:00:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:00:11,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 04:00:11,531 INFO L290 TraceCheckUtils]: 0: Hoare triple {24#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 1999999))} 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; {42#(and (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 1999999)) (or (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (not (<= |ULTIMATE.start_main_~i~0#1| 1000000)))) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} is VALID [2022-02-21 04:00:11,531 INFO L290 TraceCheckUtils]: 1: Hoare triple {42#(and (>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 1999999)) (or (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start_main_~i~0#1| 1000000)) (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (not (<= |ULTIMATE.start_main_~i~0#1| 1000000)))) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} assume !(0 == __VERIFIER_assert_~cond#1); {46#(and (<= 1999999 (+ oldRank0 (* 2 |ULTIMATE.start_main_~i~0#1|))) (<= |ULTIMATE.start_main_~i~0#1| 1000000) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} is VALID [2022-02-21 04:00:11,532 INFO L290 TraceCheckUtils]: 2: Hoare triple {46#(and (<= 1999999 (+ oldRank0 (* 2 |ULTIMATE.start_main_~i~0#1|))) (<= |ULTIMATE.start_main_~i~0#1| 1000000) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} assume { :end_inline___VERIFIER_assert } true; {46#(and (<= 1999999 (+ oldRank0 (* 2 |ULTIMATE.start_main_~i~0#1|))) (<= |ULTIMATE.start_main_~i~0#1| 1000000) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} is VALID [2022-02-21 04:00:11,533 INFO L290 TraceCheckUtils]: 3: Hoare triple {46#(and (<= 1999999 (+ oldRank0 (* 2 |ULTIMATE.start_main_~i~0#1|))) (<= |ULTIMATE.start_main_~i~0#1| 1000000) (not (= 1000000 |ULTIMATE.start_main_~i~0#1|)))} main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; {34#(or unseeded (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 1999999))))} is VALID [2022-02-21 04:00:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:00:11,560 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:00:11,570 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:00:11,572 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,576 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 [2022-02-21 04:00:11,577 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) [2022-02-21 04:00:11,675 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. [2022-02-21 04:00:11,676 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 [2022-02-21 04:00:11,676 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 04:00:11,676 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) [2022-02-21 04:00:11,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-02-21 04:00:11,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:00:11,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:00:11,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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) [2022-02-21 04:00:11,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 04:00:11,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:00:11,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:00:11,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 37 transitions. [2022-02-21 04:00:11,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 04:00:11,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 04:00:11,687 INFO L70 LassoExtractor]: Start lassoExtractor. 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) [2022-02-21 04:00:11,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-02-21 04:00:11,690 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 5 examples of accepted words. [2022-02-21 04:00:11,691 INFO L70 LassoExtractor]: Start lassoExtractor. 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) [2022-02-21 04:00:11,697 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 04:00:11,697 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 04:00:11,698 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 29 states and 37 transitions. cyclomatic complexity: 10 [2022-02-21 04:00:11,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 37 transitions. cyclomatic complexity: 10 [2022-02-21 04:00:11,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 04:00:11,698 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 04:00:11,698 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,699 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,700 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,701 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,702 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 29 letters. Loop has 29 letters. [2022-02-21 04:00:11,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,702 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 29 letters. Loop has 29 letters. [2022-02-21 04:00:11,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 29 letters. Loop has 29 letters. [2022-02-21 04:00:11,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,704 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 11 letters. Loop has 11 letters. [2022-02-21 04:00:11,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,704 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 11 letters. Loop has 11 letters. [2022-02-21 04:00:11,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 11 letters. Loop has 11 letters. [2022-02-21 04:00:11,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,705 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 6 letters. Loop has 6 letters. [2022-02-21 04:00:11,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,705 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 6 letters. Loop has 6 letters. [2022-02-21 04:00:11,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 6 letters. Loop has 6 letters. [2022-02-21 04:00:11,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,708 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 5 letters. Loop has 4 letters. [2022-02-21 04:00:11,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,709 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 5 letters. Loop has 4 letters. [2022-02-21 04:00:11,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 5 letters. Loop has 4 letters. [2022-02-21 04:00:11,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,714 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 3 letters. Loop has 4 letters. [2022-02-21 04:00:11,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,716 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 3 letters. Loop has 4 letters. [2022-02-21 04:00:11,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 3 letters. Loop has 4 letters. [2022-02-21 04:00:11,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,718 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,719 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,721 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 04:00:11,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,722 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 04:00:11,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 4 letters. Loop has 4 letters. [2022-02-21 04:00:11,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,723 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 5 letters. [2022-02-21 04:00:11,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,723 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 5 letters. [2022-02-21 04:00:11,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 4 letters. Loop has 5 letters. [2022-02-21 04:00:11,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,724 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 04:00:11,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,724 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 04:00:11,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 2 letters. Loop has 1 letters. [2022-02-21 04:00:11,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,725 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,725 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 37 transitions. cyclomatic complexity: 10 Stem has 1 letters. Loop has 3 letters. [2022-02-21 04:00:11,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,726 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 04:00:11,733 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) [2022-02-21 04:00:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2022-02-21 04:00:11,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 4 letters. [2022-02-21 04:00:11,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 4 letters. [2022-02-21 04:00:11,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 8 letters. [2022-02-21 04:00:11,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 04:00:11,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. cyclomatic complexity: 10 [2022-02-21 04:00:11,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 04:00:11,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2022-02-21 04:00:11,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 04:00:11,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 04:00:11,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 04:00:11,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:00:11,741 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 04:00:11,742 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 04:00:11,742 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 04:00:11,742 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:00:11,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 04:00:11,742 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 04:00:11,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 04:00:11,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:00:11 BoogieIcfgContainer [2022-02-21 04:00:11,748 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:00:11,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:00:11,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:00:11,749 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:00:11,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:00:10" (3/4) ... [2022-02-21 04:00:11,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 04:00:11,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:00:11,755 INFO L158 Benchmark]: Toolchain (without parser) took 2007.16ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 86.4MB in the beginning and 93.3MB in the end (delta: -6.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-02-21 04:00:11,755 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:00:11,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.59ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 88.6MB in the end (delta: -2.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-02-21 04:00:11,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.31ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:00:11,759 INFO L158 Benchmark]: Boogie Preprocessor took 19.46ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 868.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:00:11,760 INFO L158 Benchmark]: RCFGBuilder took 184.90ms. Allocated memory is still 115.3MB. Free memory was 86.1MB in the beginning and 77.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:00:11,761 INFO L158 Benchmark]: BuchiAutomizer took 1564.99ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 77.4MB in the beginning and 94.1MB in the end (delta: -16.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-02-21 04:00:11,761 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 165.7MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 748.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:00:11,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 115.3MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.59ms. Allocated memory is still 115.3MB. Free memory was 86.3MB in the beginning and 88.6MB in the end (delta: -2.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.31ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.46ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.1MB in the end (delta: 868.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 184.90ms. Allocated memory is still 115.3MB. Free memory was 86.1MB in the beginning and 77.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1564.99ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 77.4MB in the beginning and 94.1MB in the end (delta: -16.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 165.7MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 748.8kB). 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 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 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: 51ms VariablesStem: 0 VariablesLoop: 2 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! [2022-02-21 04:00:11,808 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 [2022-02-21 04:00:12,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE