./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-libowfat/strspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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-libowfat/strspn.i -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 aca5f83919a6623f93755f2c57c9c6598ba71e3b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:32:15,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:32:15,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:32:15,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:32:15,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:32:15,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:32:15,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:32:15,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:32:15,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:32:15,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:32:15,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:32:15,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:32:15,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:32:15,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:32:15,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:32:15,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:32:15,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:32:15,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:32:15,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:32:15,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:32:15,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:32:15,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:32:15,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:32:15,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:32:15,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:32:15,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:32:15,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:32:15,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:32:15,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:32:15,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:32:15,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:32:15,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:32:15,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:32:15,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:32:15,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:32:15,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:32:15,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:32:15,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:32:15,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:32:15,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:32:15,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:32:15,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:32:15,913 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:32:15,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:32:15,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:32:15,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:32:15,916 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:32:15,916 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:32:15,917 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:32:15,917 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:32:15,917 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:32:15,917 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:32:15,919 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:32:15,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:32:15,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:32:15,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:32:15,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:32:15,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:32:15,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:32:15,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:32:15,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:32:15,922 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:32:15,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:32:15,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:32:15,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:32:15,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:32:15,923 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:32:15,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:32:15,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:32:15,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:32:15,924 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:32:15,926 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:32:15,926 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 -> aca5f83919a6623f93755f2c57c9c6598ba71e3b [2019-11-28 20:32:16,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:32:16,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:32:16,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:32:16,243 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:32:16,244 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:32:16,245 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-libowfat/strspn.i [2019-11-28 20:32:16,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae809c01/33e6d54192684dd499d7efee0392c96a/FLAG2929a0754 [2019-11-28 20:32:16,847 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:32:16,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-libowfat/strspn.i [2019-11-28 20:32:16,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae809c01/33e6d54192684dd499d7efee0392c96a/FLAG2929a0754 [2019-11-28 20:32:17,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae809c01/33e6d54192684dd499d7efee0392c96a [2019-11-28 20:32:17,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:32:17,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:32:17,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:32:17,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:32:17,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:32:17,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72e966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17, skipping insertion in model container [2019-11-28 20:32:17,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:32:17,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:32:17,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:32:17,732 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:32:17,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:32:17,837 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:32:17,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17 WrapperNode [2019-11-28 20:32:17,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:32:17,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:32:17,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:32:17,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:32:17,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:32:17,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:32:17,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:32:17,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:32:17,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (1/1) ... [2019-11-28 20:32:17,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:32:17,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:32:17,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:32:17,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:32:17,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (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 [2019-11-28 20:32:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:32:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:32:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:32:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:32:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:32:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:32:18,295 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:32:18,295 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:32:18,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:18 BoogieIcfgContainer [2019-11-28 20:32:18,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:32:18,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:32:18,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:32:18,301 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:32:18,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:18,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:32:17" (1/3) ... [2019-11-28 20:32:18,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642f636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:18, skipping insertion in model container [2019-11-28 20:32:18,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:18,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:32:17" (2/3) ... [2019-11-28 20:32:18,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642f636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:32:18, skipping insertion in model container [2019-11-28 20:32:18,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:32:18,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:18" (3/3) ... [2019-11-28 20:32:18,306 INFO L371 chiAutomizerObserver]: Analyzing ICFG strspn.i [2019-11-28 20:32:18,353 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:32:18,353 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:32:18,354 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:32:18,354 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:32:18,354 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:32:18,354 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:32:18,354 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:32:18,355 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:32:18,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:32:18,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2019-11-28 20:32:18,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:18,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:18,392 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:32:18,392 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:32:18,393 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:32:18,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:32:18,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2019-11-28 20:32:18,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:18,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:18,395 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:32:18,395 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:32:18,402 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 9#L521true assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 6#L525true assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 19#L510-4true [2019-11-28 20:32:18,402 INFO L796 eck$LassoCheckResult]: Loop: 19#L510-4true call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 12#L510-1true assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 4#L511-6true assume !true; 5#L511-7true call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 7#L512true assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 15#L510-3true strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 19#L510-4true [2019-11-28 20:32:18,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:18,408 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-28 20:32:18,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:18,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390598854] [2019-11-28 20:32:18,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,585 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:18,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2019-11-28 20:32:18,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:18,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763368648] [2019-11-28 20:32:18,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:18,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763368648] [2019-11-28 20:32:18,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:32:18,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:32:18,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773408954] [2019-11-28 20:32:18,631 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:32:18,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:32:18,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 20:32:18,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 20:32:18,651 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-28 20:32:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:32:18,659 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-28 20:32:18,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 20:32:18,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-28 20:32:18,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2019-11-28 20:32:18,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2019-11-28 20:32:18,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-28 20:32:18,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-28 20:32:18,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2019-11-28 20:32:18,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:32:18,669 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 20:32:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2019-11-28 20:32:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 20:32:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:32:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-28 20:32:18,700 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 20:32:18,700 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 20:32:18,700 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:32:18,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2019-11-28 20:32:18,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2019-11-28 20:32:18,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:18,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:18,703 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:32:18,703 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:32:18,704 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 51#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 52#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 48#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 49#L510-4 [2019-11-28 20:32:18,704 INFO L796 eck$LassoCheckResult]: Loop: 49#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 55#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 44#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 45#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 53#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 46#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 47#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 50#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 49#L510-4 [2019-11-28 20:32:18,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:18,704 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2019-11-28 20:32:18,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:18,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617441060] [2019-11-28 20:32:18,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,796 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:18,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1786909933, now seen corresponding path program 1 times [2019-11-28 20:32:18,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:18,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25884394] [2019-11-28 20:32:18,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,844 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:18,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:18,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1162005510, now seen corresponding path program 1 times [2019-11-28 20:32:18,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:18,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398496453] [2019-11-28 20:32:18,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:18,936 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:19,177 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-11-28 20:32:19,619 WARN L192 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-11-28 20:32:19,756 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2019-11-28 20:32:19,769 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:32:19,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:32:19,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:32:19,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:32:19,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:32:19,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:19,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:32:19,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:32:19,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration2_Lasso [2019-11-28 20:32:19,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:32:19,772 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:32:19,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:19,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:20,188 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-11-28 20:32:20,327 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-11-28 20:32:20,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:20,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:20,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:20,906 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:32:20,912 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 20:32:20,918 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 [2019-11-28 20:32:20,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:20,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:20,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:20,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:20,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:20,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:20,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:20,930 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:20,938 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 [2019-11-28 20:32:20,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:20,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:20,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:20,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:20,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:20,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:20,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:20,944 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 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 [2019-11-28 20:32:20,949 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 [2019-11-28 20:32:20,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:20,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:20,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:20,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:20,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:20,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:20,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:20,954 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:20,969 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 Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:20,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:20,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:20,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:20,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:20,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:20,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:20,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:20,973 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 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 [2019-11-28 20:32:20,981 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 [2019-11-28 20:32:20,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:20,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:20,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:20,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:20,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:20,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:20,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:20,988 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 [2019-11-28 20:32:21,007 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 [2019-11-28 20:32:21,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,017 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) [2019-11-28 20:32:21,034 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 [2019-11-28 20:32:21,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,042 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,048 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 [2019-11-28 20:32:21,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,058 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,071 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 [2019-11-28 20:32:21,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,084 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) [2019-11-28 20:32:21,096 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 [2019-11-28 20:32:21,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,101 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 [2019-11-28 20:32:21,103 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:21,124 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 [2019-11-28 20:32:21,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,130 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 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 [2019-11-28 20:32:21,143 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 [2019-11-28 20:32:21,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,148 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 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 [2019-11-28 20:32:21,165 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 [2019-11-28 20:32:21,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,177 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 [2019-11-28 20:32:21,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,183 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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,191 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 [2019-11-28 20:32:21,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,196 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,204 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 [2019-11-28 20:32:21,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,211 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:21,225 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 [2019-11-28 20:32:21,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,261 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,274 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 [2019-11-28 20:32:21,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,277 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 20:32:21,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,279 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 20:32:21,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,283 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:21,294 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 Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,315 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,323 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 [2019-11-28 20:32:21,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,334 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,343 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 [2019-11-28 20:32:21,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:21,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:21,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:21,349 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:21,369 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 Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,375 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 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,382 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 [2019-11-28 20:32:21,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:21,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:21,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:21,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:21,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:21,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:21,418 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:32:21,608 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-28 20:32:21,609 INFO L444 ModelExtractionUtils]: 6 out of 25 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:21,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:21,627 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:32:21,627 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:32:21,628 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in_len~0, ULTIMATE.start_strspn_~s.offset) = 1*ULTIMATE.start_main_~in_len~0 - 1*ULTIMATE.start_strspn_~s.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_strspn_~s.base)_1 + 1*ULTIMATE.start_main_~in_len~0 >= 0] [2019-11-28 20:32:21,672 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2019-11-28 20:32:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:21,755 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 20:32:21,759 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:21,814 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:32:21,814 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:32:21,823 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:32:21,827 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 20:32:21,828 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 20:32:21,834 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:32:21,835 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:32:21,835 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:14, output treesize:12 [2019-11-28 20:32:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:21,874 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:32:21,875 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:21,901 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:32:21,902 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-11-28 20:32:21,984 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 22 states and 27 transitions. Complement of second has 5 states. [2019-11-28 20:32:21,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:32:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:32:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-28 20:32:21,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2019-11-28 20:32:21,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:21,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2019-11-28 20:32:21,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:21,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 16 letters. [2019-11-28 20:32:21,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:21,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-11-28 20:32:21,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:32:21,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2019-11-28 20:32:21,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:32:21,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:32:21,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2019-11-28 20:32:21,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:32:21,993 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-28 20:32:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2019-11-28 20:32:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 20:32:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 20:32:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2019-11-28 20:32:21,997 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-28 20:32:21,997 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-28 20:32:21,998 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:32:21,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2019-11-28 20:32:22,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:32:22,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:22,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:22,003 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:32:22,003 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:32:22,004 INFO L794 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 192#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 193#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 189#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 190#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 197#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 183#L511-6 [2019-11-28 20:32:22,004 INFO L796 eck$LassoCheckResult]: Loop: 183#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 184#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 194#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 199#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 183#L511-6 [2019-11-28 20:32:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:22,004 INFO L82 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2019-11-28 20:32:22,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:22,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767641914] [2019-11-28 20:32:22,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,068 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:22,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 1 times [2019-11-28 20:32:22,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:22,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353999991] [2019-11-28 20:32:22,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:22,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:22,081 INFO L82 PathProgramCache]: Analyzing trace with hash 736220242, now seen corresponding path program 1 times [2019-11-28 20:32:22,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:22,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48457129] [2019-11-28 20:32:22,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:22,125 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:22,234 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-28 20:32:22,609 WARN L192 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 99 [2019-11-28 20:32:22,747 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-28 20:32:22,749 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:32:22,749 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:32:22,749 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:32:22,749 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:32:22,749 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:32:22,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:22,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:32:22,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:32:22,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration3_Lasso [2019-11-28 20:32:22,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:32:22,750 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:32:22,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:22,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,254 WARN L192 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-11-28 20:32:23,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:23,962 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:32:23,963 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:23,974 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 [2019-11-28 20:32:23,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:23,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:23,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:23,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:23,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:23,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:23,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:23,977 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 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:23,987 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 [2019-11-28 20:32:23,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:23,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:23,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:23,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:23,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:23,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:23,997 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:24,010 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 [2019-11-28 20:32:24,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:24,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:24,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:24,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:24,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:24,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:24,034 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 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:24,040 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 [2019-11-28 20:32:24,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:24,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:24,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:24,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:24,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:24,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:24,047 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:24,053 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 [2019-11-28 20:32:24,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:24,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:24,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:24,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:24,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:24,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:24,090 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:32:24,194 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2019-11-28 20:32:24,194 INFO L444 ModelExtractionUtils]: 35 out of 49 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:24,199 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:24,202 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:32:24,203 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:32:24,203 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2, ULTIMATE.start_strspn_~a~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 - 1*ULTIMATE.start_strspn_~a~0.offset Supporting invariants [] [2019-11-28 20:32:24,259 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2019-11-28 20:32:24,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:32:24,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:24,313 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:32:24,315 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:24,344 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:32:24,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:24,361 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:32:24,361 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-28 20:32:24,421 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 48 states and 60 transitions. Complement of second has 6 states. [2019-11-28 20:32:24,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:32:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:32:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-28 20:32:24,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 20:32:24,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:24,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-28 20:32:24,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:24,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2019-11-28 20:32:24,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:24,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2019-11-28 20:32:24,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:32:24,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 40 transitions. [2019-11-28 20:32:24,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 20:32:24,434 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 20:32:24,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2019-11-28 20:32:24,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:32:24,434 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-11-28 20:32:24,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2019-11-28 20:32:24,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2019-11-28 20:32:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-28 20:32:24,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-11-28 20:32:24,440 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-28 20:32:24,440 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-11-28 20:32:24,441 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:32:24,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2019-11-28 20:32:24,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:32:24,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:24,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:24,444 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:32:24,444 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:32:24,445 INFO L794 eck$LassoCheckResult]: Stem: 387#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 382#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 383#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 379#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 380#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 389#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 390#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 385#L511-1 assume !strspn_#t~short7; 386#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 377#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 378#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 381#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 392#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 388#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 373#L511-6 [2019-11-28 20:32:24,445 INFO L796 eck$LassoCheckResult]: Loop: 373#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 374#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 384#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 391#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 373#L511-6 [2019-11-28 20:32:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1779209729, now seen corresponding path program 1 times [2019-11-28 20:32:24,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:24,446 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046388788] [2019-11-28 20:32:24,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:24,525 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046388788] [2019-11-28 20:32:24,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:32:24,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:32:24,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233193162] [2019-11-28 20:32:24,526 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 20:32:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 2 times [2019-11-28 20:32:24,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:24,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795064704] [2019-11-28 20:32:24,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,539 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:24,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:32:24,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:32:24,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:32:24,650 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand 5 states. [2019-11-28 20:32:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:32:24,703 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2019-11-28 20:32:24,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:32:24,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2019-11-28 20:32:24,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-28 20:32:24,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 38 transitions. [2019-11-28 20:32:24,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 20:32:24,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 20:32:24,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 38 transitions. [2019-11-28 20:32:24,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:32:24,707 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-28 20:32:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 38 transitions. [2019-11-28 20:32:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-11-28 20:32:24,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 20:32:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-28 20:32:24,711 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-28 20:32:24,711 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-28 20:32:24,711 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:32:24,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-11-28 20:32:24,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:32:24,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:32:24,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:32:24,713 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:32:24,713 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:32:24,713 INFO L794 eck$LassoCheckResult]: Stem: 458#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 453#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 454#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 450#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 451#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 460#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 461#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 469#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 466#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 448#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 449#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 452#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 464#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 459#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 444#L511-6 [2019-11-28 20:32:24,713 INFO L796 eck$LassoCheckResult]: Loop: 444#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 445#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 455#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 462#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 444#L511-6 [2019-11-28 20:32:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,714 INFO L82 PathProgramCache]: Analyzing trace with hash 4202367, now seen corresponding path program 2 times [2019-11-28 20:32:24,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:24,715 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341960347] [2019-11-28 20:32:24,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,765 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:24,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 3 times [2019-11-28 20:32:24,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:24,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767653966] [2019-11-28 20:32:24,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:24,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1675488540, now seen corresponding path program 1 times [2019-11-28 20:32:24,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:32:24,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097884639] [2019-11-28 20:32:24,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:32:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:32:24,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:32:25,596 WARN L192 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 130 [2019-11-28 20:32:25,774 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-28 20:32:25,777 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:32:25,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:32:25,778 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:32:25,778 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:32:25,778 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:32:25,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:25,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:32:25,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:32:25,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration5_Lasso [2019-11-28 20:32:25,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:32:25,778 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:32:25,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:25,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 20:32:26,299 WARN L192 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-11-28 20:32:26,445 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-11-28 20:32:26,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:26,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:26,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:26,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:26,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:32:27,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:32:27,075 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,084 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 [2019-11-28 20:32:27,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,092 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,102 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 [2019-11-28 20:32:27,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,107 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 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,113 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 [2019-11-28 20:32:27,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,118 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 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,124 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 [2019-11-28 20:32:27,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,128 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,134 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 [2019-11-28 20:32:27,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,137 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 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,143 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 [2019-11-28 20:32:27,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,146 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 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,155 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 [2019-11-28 20:32:27,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,159 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 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,164 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 [2019-11-28 20:32:27,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,168 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 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,173 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 [2019-11-28 20:32:27,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,181 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 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,186 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 [2019-11-28 20:32:27,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,192 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 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,205 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 [2019-11-28 20:32:27,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:32:27,212 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,221 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 [2019-11-28 20:32:27,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,226 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,232 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 [2019-11-28 20:32:27,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,236 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,247 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 [2019-11-28 20:32:27,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:32:27,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:32:27,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,253 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,265 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 [2019-11-28 20:32:27,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,292 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,299 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 Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,308 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,313 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 [2019-11-28 20:32:27,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,322 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,331 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 [2019-11-28 20:32:27,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,334 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-28 20:32:27,334 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-28 20:32:27,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,370 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2019-11-28 20:32:27,371 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2019-11-28 20:32:27,430 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,435 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 [2019-11-28 20:32:27,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,442 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 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,449 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 [2019-11-28 20:32:27,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,454 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,463 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 [2019-11-28 20:32:27,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,473 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 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,479 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 [2019-11-28 20:32:27,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:32:27,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:32:27,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:32:27,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:32:27,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:32:27,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:32:27,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:32:27,562 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-28 20:32:27,562 INFO L444 ModelExtractionUtils]: 15 out of 49 variables were initially zero. Simplification set additionally 31 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:32:27,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:32:27,571 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:32:27,571 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:32:27,571 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3, ULTIMATE.start_strspn_~a~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3 - 1*ULTIMATE.start_strspn_~a~0.offset Supporting invariants [] [2019-11-28 20:32:27,700 INFO L297 tatePredicateManager]: 31 out of 32 supporting invariants were superfluous and have been removed [2019-11-28 20:32:27,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:32:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:27,761 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:32:27,762 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:27,780 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:32:27,780 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:27,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:32:27,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-28 20:32:27,844 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 44 states and 52 transitions. Complement of second has 6 states. [2019-11-28 20:32:27,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:32:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:32:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-28 20:32:27,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-28 20:32:27,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:27,846 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:32:27,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:27,887 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:32:27,888 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:27,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:32:27,906 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:27,923 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:32:27,923 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-28 20:32:27,976 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 44 states and 52 transitions. Complement of second has 6 states. [2019-11-28 20:32:27,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:32:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:32:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-28 20:32:27,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-28 20:32:27,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:27,978 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:32:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:32:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:28,024 INFO L264 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:32:28,025 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:32:28,042 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:32:28,043 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:32:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:32:28,060 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:32:28,061 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-28 20:32:28,105 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 46 states and 57 transitions. Complement of second has 5 states. [2019-11-28 20:32:28,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:32:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:32:28,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-11-28 20:32:28,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-28 20:32:28,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:28,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 18 letters. Loop has 4 letters. [2019-11-28 20:32:28,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:28,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 8 letters. [2019-11-28 20:32:28,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:32:28,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2019-11-28 20:32:28,113 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:32:28,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2019-11-28 20:32:28,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:32:28,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:32:28,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:32:28,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:32:28,114 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:28,115 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:28,115 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:32:28,115 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 20:32:28,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:32:28,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:32:28,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:32:28,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:32:28 BoogieIcfgContainer [2019-11-28 20:32:28,123 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:32:28,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:32:28,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:32:28,124 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:32:28,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:32:18" (3/4) ... [2019-11-28 20:32:28,128 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:32:28,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:32:28,130 INFO L168 Benchmark]: Toolchain (without parser) took 10956.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 341.3 MB). Free memory was 960.4 MB in the beginning and 889.5 MB in the end (delta: 70.9 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:28,131 INFO L168 Benchmark]: CDTParser took 0.19 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. [2019-11-28 20:32:28,131 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:28,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.03 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:28,132 INFO L168 Benchmark]: Boogie Preprocessor took 30.62 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. [2019-11-28 20:32:28,133 INFO L168 Benchmark]: RCFGBuilder took 374.99 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:28,134 INFO L168 Benchmark]: BuchiAutomizer took 9825.63 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 889.5 MB in the end (delta: 233.8 MB). Peak memory consumption was 405.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:32:28,134 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.4 GB. Free memory is still 889.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:32:28,137 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 661.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.03 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.62 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 374.99 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9825.63 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 889.5 MB in the end (delta: 233.8 MB). Peak memory consumption was 405.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.4 GB. Free memory is still 889.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function in_len + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * a and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * a and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 100 SDtfs, 88 SDslu, 45 SDs, 0 SdLazy, 84 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital226 mio100 ax100 hnf99 lsp95 ukn80 mio100 lsp39 div100 bol100 ite100 ukn100 eq187 hnf88 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 106ms VariablesStem: 4 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 72 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...