./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/java_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 535f92a2734d803c22d5e10e2200913cae078252 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:31:41,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:31:41,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:31:41,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:31:41,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:31:41,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:31:41,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:31:41,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:31:41,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:31:41,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:31:41,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:31:41,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:31:41,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:31:41,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:31:41,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:31:41,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:31:41,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:31:41,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:31:41,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:31:41,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:31:41,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:31:41,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:31:41,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:31:41,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:31:41,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:31:41,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:31:41,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:31:41,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:31:41,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:31:41,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:31:41,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:31:41,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:31:41,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:31:41,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:31:41,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:31:41,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:31:41,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:31:41,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:31:41,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:31:41,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:31:41,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:31:41,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:31:41,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:31:41,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:31:41,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:31:41,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:31:41,157 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:31:41,157 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:31:41,157 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:31:41,158 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:31:41,158 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:31:41,158 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:31:41,158 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:31:41,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:31:41,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:31:41,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:31:41,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:31:41,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:31:41,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:31:41,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:31:41,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:31:41,161 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:31:41,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:31:41,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:31:41,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:31:41,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:31:41,162 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:31:41,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:31:41,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:31:41,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:31:41,163 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:31:41,165 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:31:41,165 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 535f92a2734d803c22d5e10e2200913cae078252 [2020-07-29 01:31:41,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:31:41,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:31:41,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:31:41,555 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:31:41,556 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:31:41,557 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2020-07-29 01:31:41,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb84e799/d0e94252307c4eff8b36cfb0ccd5dc6e/FLAG3f451ecf6 [2020-07-29 01:31:42,003 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:31:42,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2020-07-29 01:31:42,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb84e799/d0e94252307c4eff8b36cfb0ccd5dc6e/FLAG3f451ecf6 [2020-07-29 01:31:42,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edb84e799/d0e94252307c4eff8b36cfb0ccd5dc6e [2020-07-29 01:31:42,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:31:42,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:31:42,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:42,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:31:42,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:31:42,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bed28de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42, skipping insertion in model container [2020-07-29 01:31:42,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:31:42,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:31:42,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:42,597 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:31:42,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:42,628 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:31:42,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42 WrapperNode [2020-07-29 01:31:42,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:42,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:42,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:31:42,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:31:42,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:42,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:31:42,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:31:42,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:31:42,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (1/1) ... [2020-07-29 01:31:42,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:31:42,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:31:42,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:31:42,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:31:42,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (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 [2020-07-29 01:31:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:31:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:31:42,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:31:42,960 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-29 01:31:42,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:42 BoogieIcfgContainer [2020-07-29 01:31:42,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:31:42,965 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:31:42,965 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:31:42,969 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:31:42,969 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:42,970 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:31:42" (1/3) ... [2020-07-29 01:31:42,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dd69111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:42, skipping insertion in model container [2020-07-29 01:31:42,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:42,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:42" (2/3) ... [2020-07-29 01:31:42,971 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dd69111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:42, skipping insertion in model container [2020-07-29 01:31:42,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:42,971 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:42" (3/3) ... [2020-07-29 01:31:42,973 INFO L371 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2020-07-29 01:31:43,026 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:31:43,026 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:31:43,026 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:31:43,026 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:31:43,027 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:31:43,027 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:31:43,027 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:31:43,027 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:31:43,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:43,078 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:43,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:43,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:43,087 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:43,088 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:43,088 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:31:43,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:43,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:43,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:43,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:43,092 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:43,093 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:43,103 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 8#L10-2true [2020-07-29 01:31:43,103 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2020-07-29 01:31:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:43,111 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:31:43,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:43,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673409095] [2020-07-29 01:31:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:43,220 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:31:43,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:43,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543671703] [2020-07-29 01:31:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,233 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,239 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:43,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:43,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:31:43,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:43,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208526447] [2020-07-29 01:31:43,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:43,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:43,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:43,328 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:43,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:43,329 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:43,329 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:43,329 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:43,329 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:43,329 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:43,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:43,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2020-07-29 01:31:43,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:43,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:43,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,598 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:43,599 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) [2020-07-29 01:31:43,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:43,606 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 [2020-07-29 01:31:43,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:43,617 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) [2020-07-29 01:31:43,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:43,655 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 [2020-07-29 01:31:43,661 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:43,661 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 [2020-07-29 01:31:43,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:43,700 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 [2020-07-29 01:31:43,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:43,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:43,780 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:43,782 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:43,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:43,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:43,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:43,783 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:43,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:43,784 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:43,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:43,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2020-07-29 01:31:43,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:43,785 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:43,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:43,952 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:43,958 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:43,964 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 [2020-07-29 01:31:43,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:43,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:43,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:43,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:43,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:43,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:43,980 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 [2020-07-29 01:31:44,017 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 [2020-07-29 01:31:44,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:44,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:44,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:44,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:44,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:44,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:44,030 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 [2020-07-29 01:31:44,063 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 [2020-07-29 01:31:44,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:44,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:44,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:44,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:44,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:44,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:44,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:44,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:44,083 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:44,083 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) [2020-07-29 01:31:44,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:44,090 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:44,090 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:44,091 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 [2020-07-29 01:31:44,154 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:44,158 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0;" [2020-07-29 01:31:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:44,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#unseeded} havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; {18#unseeded} is VALID [2020-07-29 01:31:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,216 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:31:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:44,221 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#(>= oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 199))} assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; {31#(or (and (> oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 199)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:31:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:31:44,232 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:31:44,239 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:44,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,250 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 [2020-07-29 01:31:44,251 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2020-07-29 01:31:44,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 21 states and 29 transitions. Complement of second has 5 states. [2020-07-29 01:31:44,312 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 [2020-07-29 01:31:44,312 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:44,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:44,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:44,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:44,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:44,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:31:44,319 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:44,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:44,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:44,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2020-07-29 01:31:44,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:44,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:44,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:44,324 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 8 states. [2020-07-29 01:31:44,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:44,326 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:44,326 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:31:44,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:44,328 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:44,328 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 21 states and 29 transitions. cyclomatic complexity: 12 [2020-07-29 01:31:44,329 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:31:44,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:31:44,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:31:44,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:31:44,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:44,334 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:44,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:44,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:44,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:44,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:44,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:44,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 29 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:44,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,343 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:44,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:31:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-07-29 01:31:44,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:44,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:44,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:44,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:44,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. cyclomatic complexity: 12 [2020-07-29 01:31:44,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:44,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 5 states and 7 transitions. [2020-07-29 01:31:44,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-29 01:31:44,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-29 01:31:44,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-07-29 01:31:44,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:44,370 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-29 01:31:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-07-29 01:31:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-29 01:31:44,396 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:31:44,397 INFO L82 GeneralOperation]: Start isEquivalent. First operand 5 states and 7 transitions. Second operand 5 states. [2020-07-29 01:31:44,397 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states and 7 transitions. Second operand 5 states. [2020-07-29 01:31:44,399 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 5 states. [2020-07-29 01:31:44,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:31:44,402 INFO L93 Difference]: Finished difference Result 5 states and 7 transitions. [2020-07-29 01:31:44,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2020-07-29 01:31:44,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:31:44,404 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:31:44,404 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states and 7 transitions. [2020-07-29 01:31:44,404 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states and 7 transitions. [2020-07-29 01:31:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:31:44,405 INFO L93 Difference]: Finished difference Result 5 states and 7 transitions. [2020-07-29 01:31:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2020-07-29 01:31:44,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:31:44,406 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:31:44,406 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:31:44,406 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:31:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-29 01:31:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-29 01:31:44,408 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-29 01:31:44,409 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-29 01:31:44,409 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:31:44,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-29 01:31:44,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:44,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:44,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:44,410 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-29 01:31:44,410 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:44,411 INFO L794 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 65#L10-2 assume !(main_~i~0 < 100); 66#L10-3 main_~j~0 := 5; 67#L15-2 [2020-07-29 01:31:44,411 INFO L796 eck$LassoCheckResult]: Loop: 67#L15-2 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 67#L15-2 [2020-07-29 01:31:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:44,411 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2020-07-29 01:31:44,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:44,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128252669] [2020-07-29 01:31:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:44,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {82#true} havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; {84#(<= ULTIMATE.start_main_~i~0 0)} is VALID [2020-07-29 01:31:44,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {84#(<= ULTIMATE.start_main_~i~0 0)} assume !(main_~i~0 < 100); {83#false} is VALID [2020-07-29 01:31:44,456 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#false} main_~j~0 := 5; {83#false} is VALID [2020-07-29 01:31:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:31:44,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128252669] [2020-07-29 01:31:44,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:31:44,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:31:44,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728163718] [2020-07-29 01:31:44,461 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-29 01:31:44,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:44,462 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2020-07-29 01:31:44,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:44,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905080804] [2020-07-29 01:31:44,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:44,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:44,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:44,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:44,496 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:44,497 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:44,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:44,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:44,497 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:44,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:44,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:44,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:44,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2020-07-29 01:31:44,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:44,498 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:44,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,674 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:44,674 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) [2020-07-29 01:31:44,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:44,679 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 [2020-07-29 01:31:44,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:44,689 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) [2020-07-29 01:31:44,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:44,736 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 [2020-07-29 01:31:44,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:44,743 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) [2020-07-29 01:31:44,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:44,790 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:44,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:44,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:44,869 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:44,871 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:44,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:44,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:44,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:44,871 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:44,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:44,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:44,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:44,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2020-07-29 01:31:44,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:44,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:44,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:44,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:31:45,012 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:45,012 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:45,023 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 [2020-07-29 01:31:45,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:45,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:45,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:45,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:45,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:45,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:45,034 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) [2020-07-29 01:31:45,083 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 [2020-07-29 01:31:45,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:45,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:45,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:45,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:45,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:45,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:45,093 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:45,142 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 [2020-07-29 01:31:45,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:45,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:45,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:45,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:45,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:45,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:45,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:45,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:45,151 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:45,151 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:45,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:45,162 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:45,162 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:45,162 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:45,197 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:45,200 INFO L393 LassoCheck]: Loop: "assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0;" [2020-07-29 01:31:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:45,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:45,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:45,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {87#unseeded} havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; {87#unseeded} is VALID [2020-07-29 01:31:45,227 INFO L280 TraceCheckUtils]: 1: Hoare triple {87#unseeded} assume !(main_~i~0 < 100); {87#unseeded} is VALID [2020-07-29 01:31:45,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {87#unseeded} main_~j~0 := 5; {87#unseeded} is VALID [2020-07-29 01:31:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:45,232 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:31:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:45,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:45,236 INFO L280 TraceCheckUtils]: 0: Hoare triple {90#(>= oldRank0 (+ (* (- 2) ULTIMATE.start_main_~j~0) 43))} assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; {100#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) ULTIMATE.start_main_~j~0) 43))) unseeded)} is VALID [2020-07-29 01:31:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:31:45,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:31:45,241 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:45,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,242 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 [2020-07-29 01:31:45,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-29 01:31:45,253 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 6 states and 8 transitions. Complement of second has 2 states. [2020-07-29 01:31:45,253 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 [2020-07-29 01:31:45,253 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:45,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:45,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:45,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:45,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:31:45,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:45,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:45,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:45,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-07-29 01:31:45,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:45,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:45,256 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 5 states and 7 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:45,256 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:31:45,256 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:31:45,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:45,257 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:31:45,257 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:45,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:45,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:45,258 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:31:45,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:45,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:45,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:45,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:45,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:45,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:45,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:45,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:45,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:45,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:45,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,266 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:31:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2020-07-29 01:31:45,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:45,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:31:45,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:31:45,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:45,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:45,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:45,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-07-29 01:31:45,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:45,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:45,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:45,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:45,271 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:45,271 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:45,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:31:45,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:31:45,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:31:45,275 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-07-29 01:31:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:31:45,276 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-29 01:31:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-29 01:31:45,276 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:31:45,281 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:45,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-29 01:31:45,282 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:45,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-29 01:31:45,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:45,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:45,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:45,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:45,283 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:45,283 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:45,283 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:45,283 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:31:45,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:31:45,283 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:45,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:45,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:31:45 BoogieIcfgContainer [2020-07-29 01:31:45,291 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:31:45,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:31:45,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:31:45,292 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:31:45,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:42" (3/4) ... [2020-07-29 01:31:45,296 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:31:45,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:31:45,299 INFO L168 Benchmark]: Toolchain (without parser) took 2901.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 961.6 MB in the beginning and 861.8 MB in the end (delta: 99.7 MB). Peak memory consumption was 252.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:45,300 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:45,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.79 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 949.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:45,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:45,302 INFO L168 Benchmark]: Boogie Preprocessor took 74.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:45,303 INFO L168 Benchmark]: RCFGBuilder took 227.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:45,304 INFO L168 Benchmark]: BuchiAutomizer took 2325.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.8 MB in the end (delta: 269.7 MB). Peak memory consumption was 269.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:45,304 INFO L168 Benchmark]: Witness Printer took 4.79 ms. Allocated memory is still 1.2 GB. Free memory is still 861.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:45,308 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.79 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 949.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 227.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2325.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.8 MB in the end (delta: 269.7 MB). Peak memory consumption was 269.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.79 ms. Allocated memory is still 1.2 GB. Free memory is still 861.8 MB. There was no memory consumed. Max. memory is 11.5 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 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms 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...