./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Sequence.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/Sequence.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 a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:17:10,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:17:10,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:17:10,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:17:10,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:17:10,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:17:10,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:17:10,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:17:10,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:17:10,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:17:10,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:17:10,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:17:10,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:17:10,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:17:10,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:17:10,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:17:10,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:17:10,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:17:10,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:17:10,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:17:10,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:17:10,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:17:10,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:17:10,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:17:11,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:17:11,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:17:11,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:17:11,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:17:11,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:17:11,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:17:11,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:17:11,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:17:11,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:17:11,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:17:11,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:17:11,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:17:11,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:17:11,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:17:11,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:17:11,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:17:11,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:17:11,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:17:11,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:17:11,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:17:11,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:17:11,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:17:11,100 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:17:11,100 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:17:11,100 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:17:11,100 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:17:11,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:17:11,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:17:11,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:17:11,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:17:11,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:17:11,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:17:11,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:17:11,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:17:11,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:17:11,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:17:11,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:17:11,103 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:17:11,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:17:11,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:17:11,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:17:11,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:17:11,105 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:17:11,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:17:11,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:17:11,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:17:11,106 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:17:11,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:17:11,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2020-10-26 04:17:11,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:17:11,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:17:11,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:17:11,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:17:11,535 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:17:11,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sequence.c [2020-10-26 04:17:11,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e769965/13653de268bc435997aa2ab2b058b689/FLAG688fb3a27 [2020-10-26 04:17:12,169 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:17:12,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sequence.c [2020-10-26 04:17:12,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e769965/13653de268bc435997aa2ab2b058b689/FLAG688fb3a27 [2020-10-26 04:17:12,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83e769965/13653de268bc435997aa2ab2b058b689 [2020-10-26 04:17:12,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:17:12,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:17:12,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:17:12,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:17:12,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:17:12,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a6cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12, skipping insertion in model container [2020-10-26 04:17:12,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:17:12,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:17:12,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:17:12,887 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:17:12,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:17:12,930 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:17:12,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12 WrapperNode [2020-10-26 04:17:12,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:17:12,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:17:12,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:17:12,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:17:12,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:17:12,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:17:12,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:17:12,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:17:12,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:12,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (1/1) ... [2020-10-26 04:17:13,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:17:13,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:17:13,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:17:13,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:17:13,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (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 04:17:13,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:17:13,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:17:13,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:17:13,316 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 04:17:13,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:13 BoogieIcfgContainer [2020-10-26 04:17:13,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:17:13,320 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:17:13,320 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:17:13,325 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:17:13,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:13,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:17:12" (1/3) ... [2020-10-26 04:17:13,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b0a435d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:17:13, skipping insertion in model container [2020-10-26 04:17:13,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:13,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:17:12" (2/3) ... [2020-10-26 04:17:13,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b0a435d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:17:13, skipping insertion in model container [2020-10-26 04:17:13,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:17:13,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:13" (3/3) ... [2020-10-26 04:17:13,333 INFO L373 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2020-10-26 04:17:13,404 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:17:13,405 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:17:13,405 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:17:13,405 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:17:13,405 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:17:13,405 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:17:13,405 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:17:13,405 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:17:13,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-26 04:17:13,437 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-10-26 04:17:13,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:13,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:13,444 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:17:13,444 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:17:13,445 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:17:13,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-26 04:17:13,446 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-10-26 04:17:13,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:13,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:13,447 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:17:13,447 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:17:13,455 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2020-10-26 04:17:13,455 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2020-10-26 04:17:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:13,464 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-26 04:17:13,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:13,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41423318] [2020-10-26 04:17:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:13,601 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-26 04:17:13,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:13,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378308670] [2020-10-26 04:17:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:13,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:13,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-26 04:17:13,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:13,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453637871] [2020-10-26 04:17:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:13,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:13,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:13,695 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:13,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:13,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:13,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:13,696 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:17:13,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:13,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:13,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:13,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2020-10-26 04:17:13,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:13,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:13,724 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 04:17:13,735 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 04:17:13,740 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 04:17:13,836 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:13,837 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:13,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:13,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:17:13,882 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:13,882 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) [2020-10-26 04:17:13,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:13,926 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:13,932 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:13,933 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) [2020-10-26 04:17:13,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:13,971 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:14,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:17:14,016 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:17:14,062 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:14,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:14,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:14,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:14,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:17:14,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:14,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:14,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2020-10-26 04:17:14,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:14,063 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:14,065 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 04:17:14,071 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 04:17:14,075 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 04:17:14,171 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:14,178 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 04:17:14,190 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 04:17:14,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:14,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:14,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:14,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:14,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:17:14,207 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 04:17:14,218 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,257 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 04:17:14,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:14,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:14,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:14,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:14,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:17:14,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:17:14,271 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) [2020-10-26 04:17:14,317 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 04:17:14,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:14,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:17:14,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:14,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:14,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:14,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:17:14,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,325 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:17:14,330 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:17:14,330 INFO L444 ModelExtractionUtils]: 0 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:14,338 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:17:14,338 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:17:14,338 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:17:14,339 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,375 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:17:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:14,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:17:14,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:14,452 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:17:14,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:14,454 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 04:17:14,477 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 04:17:14,479 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2020-10-26 04:17:14,516 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 19 states and 28 transitions. Complement of second has 5 states. [2020-10-26 04:17:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:17:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:17:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-26 04:17:14,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-26 04:17:14,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:14,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:17:14,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:14,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-26 04:17:14,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:14,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2020-10-26 04:17:14,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:17:14,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2020-10-26 04:17:14,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-26 04:17:14,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-26 04:17:14,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-10-26 04:17:14,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:17:14,533 INFO L691 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-10-26 04:17:14,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-10-26 04:17:14,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-10-26 04:17:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:17:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-10-26 04:17:14,561 INFO L714 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-10-26 04:17:14,562 INFO L594 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-10-26 04:17:14,562 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:17:14,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-10-26 04:17:14,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:17:14,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:17:14,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:17:14,563 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:17:14,564 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:17:14,564 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2020-10-26 04:17:14,564 INFO L796 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2020-10-26 04:17:14,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:14,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2020-10-26 04:17:14,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:14,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764156536] [2020-10-26 04:17:14,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:17:14,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764156536] [2020-10-26 04:17:14,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:17:14,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:17:14,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058112733] [2020-10-26 04:17:14,637 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:17:14,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:14,639 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2020-10-26 04:17:14,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:17:14,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079432261] [2020-10-26 04:17:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:17:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:14,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:17:14,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:17:14,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:17:14,679 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:14,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:14,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:14,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:14,680 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:17:14,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:14,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:14,681 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2020-10-26 04:17:14,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:14,681 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:14,683 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 04:17:14,691 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 04:17:14,701 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 04:17:14,742 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:14,742 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 04:17:14,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:14,748 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 04:17:14,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:17:14,752 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:17:14,787 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 04:17:14,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:17:14,836 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 [2020-10-26 04:17:14,877 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:17:14,879 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:17:14,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:17:14,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:17:14,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:17:14,879 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:17:14,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:17:14,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:17:14,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2020-10-26 04:17:14,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:17:14,880 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:17:14,881 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 04:17:14,888 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 04:17:14,892 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 04:17:14,937 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:17:14,938 INFO L489 LassoAnalysis]: Using template 'affine'. 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 04:17:14,945 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 04:17:14,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:17:14,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:17:14,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:17:14,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:17:14,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:17:14,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:17:14,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:17:14,955 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:17:14,955 INFO L444 ModelExtractionUtils]: 0 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:17:14,960 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:17:14,960 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:17:14,960 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:17:14,962 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2020-10-26 04:17:14,990 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:17:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:17:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:15,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:17:15,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:17:15,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:17:15,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:17:15,033 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 04:17:15,034 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 04:17:15,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-10-26 04:17:15,040 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-10-26 04:17:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-10-26 04:17:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:17:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-10-26 04:17:15,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:17:15,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:15,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-26 04:17:15,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:15,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-26 04:17:15,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:17:15,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-10-26 04:17:15,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:17:15,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-10-26 04:17:15,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:17:15,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:17:15,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:17:15,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:17:15,044 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:15,044 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:15,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:17:15,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:17:15,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:17:15,049 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-26 04:17:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:17:15,052 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-26 04:17:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:17:15,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-26 04:17:15,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:17:15,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:17:15,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:17:15,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:17:15,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:17:15,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:17:15,054 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:15,054 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:15,055 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:17:15,055 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:17:15,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:17:15,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:17:15,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:17:15,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:17:15 BoogieIcfgContainer [2020-10-26 04:17:15,062 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:17:15,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:17:15,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:17:15,063 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:17:15,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:17:13" (3/4) ... [2020-10-26 04:17:15,067 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:17:15,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:17:15,070 INFO L168 Benchmark]: Toolchain (without parser) took 2489.15 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 33.1 MB in the end (delta: -14.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:15,071 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 26.8 MB in the beginning and 26.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:15,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.39 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.6 MB in the beginning and 26.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:15,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:15,074 INFO L168 Benchmark]: Boogie Preprocessor took 23.85 ms. Allocated memory is still 50.3 MB. Free memory was 25.6 MB in the beginning and 24.7 MB in the end (delta: 893.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:15,075 INFO L168 Benchmark]: RCFGBuilder took 316.85 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 28.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:15,076 INFO L168 Benchmark]: BuchiAutomizer took 1742.22 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 33.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:17:15,077 INFO L168 Benchmark]: Witness Printer took 4.74 ms. Allocated memory is still 60.8 MB. Free memory was 33.4 MB in the beginning and 33.1 MB in the end (delta: 379.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:17:15,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 26.8 MB in the beginning and 26.8 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.39 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.6 MB in the beginning and 26.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.85 ms. Allocated memory is still 50.3 MB. Free memory was 25.6 MB in the beginning and 24.7 MB in the end (delta: 893.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 316.85 ms. Allocated memory is still 50.3 MB. Free memory was 24.6 MB in the beginning and 28.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1742.22 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 33.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.74 ms. Allocated memory is still 60.8 MB. Free memory was 33.4 MB in the beginning and 33.1 MB in the end (delta: 379.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. 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 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 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...