./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Thun-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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-crafted/Thun-2.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 840ba140d54545c25f92f53e7838cceec95e9821 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:55:10,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:55:10,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:55:10,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:55:10,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:55:10,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:55:10,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:55:10,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:55:10,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:55:10,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:55:10,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:55:10,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:55:10,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:55:10,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:55:10,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:55:10,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:55:10,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:55:10,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:55:10,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:55:10,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:55:10,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:55:10,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:55:10,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:55:10,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:55:10,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:55:10,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:55:10,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:55:10,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:55:10,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:55:10,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:55:10,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:55:10,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:55:10,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:55:10,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:55:10,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:55:10,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:55:10,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:55:10,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:55:10,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:55:10,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:55:10,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:55:10,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 19:55:10,189 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:55:10,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:55:10,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:55:10,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:55:10,192 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:55:10,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 19:55:10,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 19:55:10,192 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 19:55:10,193 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 19:55:10,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 19:55:10,193 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 19:55:10,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:55:10,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:55:10,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:55:10,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:55:10,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 19:55:10,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 19:55:10,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 19:55:10,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:55:10,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 19:55:10,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:55:10,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 19:55:10,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:55:10,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:55:10,197 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 19:55:10,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:55:10,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:55:10,198 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 19:55:10,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 19:55:10,199 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 -> 840ba140d54545c25f92f53e7838cceec95e9821 [2019-11-19 19:55:10,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:55:10,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:55:10,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:55:10,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:55:10,538 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:55:10,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Thun-2.c [2019-11-19 19:55:10,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726808608/17d3a2b8bc1f48858a2ee4dc4253d539/FLAG1cf3032c7 [2019-11-19 19:55:11,058 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:55:11,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Thun-2.c [2019-11-19 19:55:11,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726808608/17d3a2b8bc1f48858a2ee4dc4253d539/FLAG1cf3032c7 [2019-11-19 19:55:11,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726808608/17d3a2b8bc1f48858a2ee4dc4253d539 [2019-11-19 19:55:11,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:55:11,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:55:11,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:55:11,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:55:11,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:55:11,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6f5539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11, skipping insertion in model container [2019-11-19 19:55:11,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,470 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:55:11,486 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:55:11,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:55:11,658 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:55:11,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:55:11,684 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:55:11,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11 WrapperNode [2019-11-19 19:55:11,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:55:11,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:55:11,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:55:11,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:55:11,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:55:11,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:55:11,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:55:11,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:55:11,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (1/1) ... [2019-11-19 19:55:11,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:55:11,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:55:11,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:55:11,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:55:11,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (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 [2019-11-19 19:55:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:55:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:55:11,982 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:55:11,982 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 19:55:11,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:11 BoogieIcfgContainer [2019-11-19 19:55:11,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:55:11,984 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 19:55:11,984 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 19:55:11,987 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 19:55:11,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:55:11,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:55:11" (1/3) ... [2019-11-19 19:55:11,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19231206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:11, skipping insertion in model container [2019-11-19 19:55:11,989 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:55:11,989 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:11" (2/3) ... [2019-11-19 19:55:11,990 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19231206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:11, skipping insertion in model container [2019-11-19 19:55:11,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 19:55:11,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:11" (3/3) ... [2019-11-19 19:55:11,992 INFO L371 chiAutomizerObserver]: Analyzing ICFG Thun-2.c [2019-11-19 19:55:12,032 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 19:55:12,033 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 19:55:12,033 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 19:55:12,033 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:55:12,033 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:55:12,034 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 19:55:12,034 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:55:12,034 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 19:55:12,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 19:55:12,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 19:55:12,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 19:55:12,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 19:55:12,077 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 19:55:12,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 19:55:12,077 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 19:55:12,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 19:55:12,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 19:55:12,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 19:55:12,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 19:55:12,079 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 19:55:12,079 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 19:55:12,086 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L29true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 10#L30true assume !!(-65535 <= main_~y~0 && main_~y~0 <= 65535); 7#L31-2true [2019-11-19 19:55:12,086 INFO L796 eck$LassoCheckResult]: Loop: 7#L31-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~y~0;main_~y~0 := -2 * main_~y~0 - 1; 7#L31-2true [2019-11-19 19:55:12,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:55:12,091 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2019-11-19 19:55:12,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:55:12,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813254822] [2019-11-19 19:55:12,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:55:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,209 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:55:12,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:55:12,211 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2019-11-19 19:55:12,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:55:12,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718032856] [2019-11-19 19:55:12,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:55:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,225 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:55:12,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:55:12,227 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2019-11-19 19:55:12,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:55:12,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735791853] [2019-11-19 19:55:12,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:55:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:55:12,246 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:55:12,365 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 19:55:12,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 19:55:12,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 19:55:12,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 19:55:12,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 19:55:12,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:12,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 19:55:12,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 19:55:12,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: Thun-2.c_Iteration1_Loop [2019-11-19 19:55:12,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 19:55:12,368 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 19:55:12,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,625 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 19:55:12,626 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:12,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 19:55:12,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 19:55:12,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 19:55:12,643 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:12,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 19:55:12,664 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 [2019-11-19 19:55:12,669 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 19:55:12,669 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:12,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 19:55:12,681 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:12,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 19:55:12,702 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:12,779 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 19:55:12,781 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 19:55:12,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 19:55:12,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 19:55:12,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 19:55:12,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 19:55:12,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:12,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 19:55:12,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 19:55:12,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: Thun-2.c_Iteration1_Loop [2019-11-19 19:55:12,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 19:55:12,783 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 19:55:12,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 19:55:12,891 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 19:55:12,896 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 [2019-11-19 19:55:12,909 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 [2019-11-19 19:55:12,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:12,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:12,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:12,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:55:12,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:55:12,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:55:12,925 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 [2019-11-19 19:55:12,936 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 [2019-11-19 19:55:12,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:12,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:12,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:12,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:55:12,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 19:55:12,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 19:55:12,950 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 [2019-11-19 19:55:12,963 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 [2019-11-19 19:55:12,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:12,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:55:12,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:12,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:12,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 19:55:12,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 19:55:12,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 19:55:12,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-19 19:55:12,974 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2019-11-19 19:55:12,992 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 [2019-11-19 19:55:12,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:12,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:12,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:12,995 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 19:55:13,001 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 19:55:13,001 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:13,008 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:13,024 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 [2019-11-19 19:55:13,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:13,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:13,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:13,027 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 19:55:13,032 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-19 19:55:13,032 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:13,040 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:13,056 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 [2019-11-19 19:55:13,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 19:55:13,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 19:55:13,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 19:55:13,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 19:55:13,059 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-19 19:55:13,062 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-19 19:55:13,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:13,070 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 19:55:13,075 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 19:55:13,075 INFO L444 ModelExtractionUtils]: 1 out of 7 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 19:55:13,085 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 19:55:13,085 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 19:55:13,085 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 19:55:13,086 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 6*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 19:55:13,094 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 19:55:13,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:55:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:55:13,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 19:55:13,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:55:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:55:13,164 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 19:55:13,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 19:55:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:55:13,182 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 [2019-11-19 19:55:13,184 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2019-11-19 19:55:13,226 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 20 states and 24 transitions. Complement of second has 5 states. [2019-11-19 19:55:13,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 19:55:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-19 19:55:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-19 19:55:13,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 19:55:13,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:55:13,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-19 19:55:13,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:55:13,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 19:55:13,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 19:55:13,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2019-11-19 19:55:13,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 19:55:13,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-19 19:55:13,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 19:55:13,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 19:55:13,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 19:55:13,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 19:55:13,244 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:55:13,244 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:55:13,245 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:55:13,245 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 19:55:13,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:55:13,246 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 19:55:13,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 19:55:13,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:55:13 BoogieIcfgContainer [2019-11-19 19:55:13,253 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 19:55:13,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:55:13,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:55:13,254 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:55:13,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:11" (3/4) ... [2019-11-19 19:55:13,258 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 19:55:13,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:55:13,261 INFO L168 Benchmark]: Toolchain (without parser) took 1805.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 961.7 MB in the beginning and 971.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:55:13,262 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:55:13,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.06 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:55:13,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:55:13,265 INFO L168 Benchmark]: Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:55:13,266 INFO L168 Benchmark]: RCFGBuilder took 197.88 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:55:13,267 INFO L168 Benchmark]: BuchiAutomizer took 1268.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:55:13,268 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 1.2 GB. Free memory is still 971.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:55:13,272 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.06 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 197.88 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1268.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.07 ms. Allocated memory is still 1.2 GB. Free memory is still 971.4 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 6 * x + 2 * y + 1 > 0 then 1 else 0), (if 6 * x + 2 * y + 1 > 0 then 6 * x + 2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf103 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...