./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB16.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee984bca7200ddfe2e041842f64b6ddcaef24aa5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:17:02,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:17:02,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:17:02,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:17:02,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:17:02,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:17:02,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:17:02,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:17:02,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:17:02,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:17:02,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:17:02,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:17:02,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:17:02,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:17:02,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:17:02,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:17:02,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:17:02,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:17:02,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:17:02,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:17:02,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:17:02,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:17:02,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:17:02,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:17:02,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:17:02,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:17:02,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:17:02,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:17:02,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:17:02,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:17:02,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:17:02,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:17:02,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:17:02,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:17:02,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:17:02,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:17:02,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:17:02,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:17:02,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:17:02,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:17:02,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:17:02,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:17:03,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:17:03,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:17:03,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:17:03,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:17:03,010 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:17:03,010 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:17:03,011 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:17:03,011 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:17:03,011 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:17:03,011 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:17:03,012 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:17:03,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:17:03,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:17:03,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:17:03,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:17:03,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:17:03,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:17:03,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:17:03,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:17:03,014 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:17:03,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:17:03,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:17:03,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:17:03,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:17:03,016 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:17:03,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:17:03,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:17:03,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:17:03,017 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:17:03,018 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:17:03,018 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee984bca7200ddfe2e041842f64b6ddcaef24aa5 [2020-10-26 04:17:03,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:17:03,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:17:03,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:17:03,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:17:03,477 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:17:03,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB16.c [2020-10-26 04:17:03,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f7b066e/56f3b02f82c04cf58a7b6a94b80d1b76/FLAGd9975ac3a [2020-10-26 04:17:04,230 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:17:04,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB16.c [2020-10-26 04:17:04,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f7b066e/56f3b02f82c04cf58a7b6a94b80d1b76/FLAGd9975ac3a [2020-10-26 04:17:04,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f7b066e/56f3b02f82c04cf58a7b6a94b80d1b76 [2020-10-26 04:17:04,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:17:04,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:17:04,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:17:04,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:17:04,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:17:04,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3afa83ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04, skipping insertion in model container [2020-10-26 04:17:04,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:17:04,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:17:04,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:17:04,499 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:17:04,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:17:04,538 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:17:04,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04 WrapperNode [2020-10-26 04:17:04,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:17:04,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:17:04,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:17:04,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:17:04,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:17:04,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:17:04,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:17:04,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:17:04,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... [2020-10-26 04:17:04,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:17:04,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:17:04,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:17:04,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:17:04,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:17:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:17:04,990 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:17:04,990 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 04:17:04,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:04 BoogieIcfgContainer [2020-10-26 04:17:04,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:17:04,994 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:17:04,994 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:17:05,000 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:17:05,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:05,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:17:04" (1/3) ... [2020-10-26 04:17:05,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49486cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:17:05, skipping insertion in model container [2020-10-26 04:17:05,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:05,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:04" (2/3) ... [2020-10-26 04:17:05,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49486cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:17:05, skipping insertion in model container [2020-10-26 04:17:05,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:05,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:04" (3/3) ... [2020-10-26 04:17:05,005 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaB16.c [2020-10-26 04:17:05,089 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:17:05,089 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:17:05,089 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:17:05,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:17:05,090 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:17:05,090 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:17:05,090 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:17:05,090 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:17:05,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-26 04:17:05,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:17:05,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:05,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:05,140 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:17:05,141 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:17:05,141 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:17:05,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-26 04:17:05,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:17:05,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:05,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:05,145 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:17:05,145 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:17:05,155 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L11-2true [2020-10-26 04:17:05,156 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 9#L11-2true [2020-10-26 04:17:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:05,165 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-26 04:17:05,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:05,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858730749] [2020-10-26 04:17:05,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:05,317 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-26 04:17:05,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:05,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816656915] [2020-10-26 04:17:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:05,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:05,368 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-10-26 04:17:05,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:05,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249113691] [2020-10-26 04:17:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:05,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:05,392 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:05,470 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:05,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:05,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:05,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:05,472 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:17:05,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:05,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:05,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2020-10-26 04:17:05,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:05,474 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:05,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,739 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:05,740 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:05,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:05,753 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,766 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:05,767 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:05,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:17:05,816 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:05,816 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:05,852 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:17:05,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:17:05,927 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:17:05,929 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:05,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:05,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:05,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:05,930 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:17:05,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:05,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:05,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:05,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration1_Loop [2020-10-26 04:17:05,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:05,931 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:05,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:05,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,029 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:06,035 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:17:06,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:06,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:06,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:06,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:06,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:17:06,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:17:06,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:06,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:06,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:06,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:06,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:17:06,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:17:06,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:06,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:17:06,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:06,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:06,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:06,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:17:06,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:17:06,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:17:06,195 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:17:06,195 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,203 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:17:06,203 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:17:06,203 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:17:06,204 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,230 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:17:06,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:06,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:17:06,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:06,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:17:06,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:17:06,334 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:17:06,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-10-26 04:17:06,428 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-10-26 04:17:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:17:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:17:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-26 04:17:06,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-26 04:17:06,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:06,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-26 04:17:06,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:06,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-26 04:17:06,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:06,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-10-26 04:17:06,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:17:06,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-26 04:17:06,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-26 04:17:06,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-26 04:17:06,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-26 04:17:06,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:17:06,473 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-26 04:17:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-26 04:17:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-10-26 04:17:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-26 04:17:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-10-26 04:17:06,504 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-26 04:17:06,504 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-26 04:17:06,505 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:17:06,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-10-26 04:17:06,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:17:06,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:06,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:06,506 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:17:06,507 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:17:06,507 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 74#L11-2 assume !!(main_~x~0 > 0); 70#L12-2 [2020-10-26 04:17:06,507 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 70#L12-2 [2020-10-26 04:17:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:06,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-26 04:17:06,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:06,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297834808] [2020-10-26 04:17:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:06,538 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-26 04:17:06,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:06,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195690145] [2020-10-26 04:17:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:06,562 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-26 04:17:06,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:06,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143036547] [2020-10-26 04:17:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:06,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:06,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:06,618 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:06,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:06,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:06,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:06,619 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:17:06,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:06,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:06,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2020-10-26 04:17:06,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:06,622 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:06,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,740 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:06,740 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:06,750 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:06,756 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:06,803 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:06,810 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:06,855 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:06,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:17:06,904 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,945 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:17:06,948 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:06,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:06,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:06,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:06,949 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:17:06,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:06,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:06,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:06,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB16.c_Iteration2_Loop [2020-10-26 04:17:06,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:06,950 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:06,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:06,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:17:07,016 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:07,016 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:07,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:17:07,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:07,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:07,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:07,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:07,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:17:07,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:07,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:07,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:17:07,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:07,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:17:07,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:07,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:07,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:07,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:17:07,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:17:07,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:17:07,089 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-10-26 04:17:07,089 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:07,095 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:17:07,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:17:07,096 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:17:07,096 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:07,131 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:17:07,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:07,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:17:07,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:07,165 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:17:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:17:07,166 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-26 04:17:07,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-26 04:17:07,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-10-26 04:17:07,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:17:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:17:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-10-26 04:17:07,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:17:07,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:07,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-26 04:17:07,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:07,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-26 04:17:07,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:07,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-10-26 04:17:07,193 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:17:07,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-10-26 04:17:07,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:17:07,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:17:07,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:17:07,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:17:07,195 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:07,195 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:07,196 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:07,196 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:17:07,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:17:07,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:17:07,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:17:07,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:17:07 BoogieIcfgContainer [2020-10-26 04:17:07,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:17:07,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:17:07,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:17:07,204 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:17:07,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:04" (3/4) ... [2020-10-26 04:17:07,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:17:07,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:17:07,212 INFO L168 Benchmark]: Toolchain (without parser) took 2951.96 ms. Allocated memory was 41.9 MB in the beginning and 81.8 MB in the end (delta: 39.8 MB). Free memory was 19.0 MB in the beginning and 57.1 MB in the end (delta: -38.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:07,216 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:07,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.29 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 18.2 MB in the beginning and 38.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:07,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.18 ms. Allocated memory is still 60.8 MB. Free memory was 38.0 MB in the beginning and 36.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:07,227 INFO L168 Benchmark]: Boogie Preprocessor took 24.83 ms. Allocated memory is still 60.8 MB. Free memory was 36.7 MB in the beginning and 35.9 MB in the end (delta: 794.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:07,227 INFO L168 Benchmark]: RCFGBuilder took 381.24 ms. Allocated memory is still 60.8 MB. Free memory was 35.7 MB in the beginning and 43.7 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:07,228 INFO L168 Benchmark]: BuchiAutomizer took 2208.70 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 43.5 MB in the beginning and 57.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:07,228 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 81.8 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:07,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.29 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 18.2 MB in the beginning and 38.0 MB in the end (delta: -19.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.18 ms. Allocated memory is still 60.8 MB. Free memory was 38.0 MB in the beginning and 36.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.83 ms. Allocated memory is still 60.8 MB. Free memory was 36.7 MB in the beginning and 35.9 MB in the end (delta: 794.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 381.24 ms. Allocated memory is still 60.8 MB. Free memory was 35.7 MB in the beginning and 43.7 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2208.70 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 43.5 MB in the beginning and 57.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.37 ms. Allocated memory is still 81.8 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...