./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/recursive/Addition03-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash b2edae58c49fda124d3cdef0e9085ec6493b5502 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:59:32,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:59:32,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:59:32,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:59:32,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:59:32,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:59:32,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:59:32,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:59:32,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:59:32,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:59:32,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:59:32,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:59:32,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:59:32,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:59:32,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:59:32,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:59:32,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:59:32,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:59:32,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:59:32,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:59:32,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:59:32,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:59:32,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:59:32,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:59:32,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:59:32,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:59:32,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:59:32,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:59:32,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:59:32,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:59:32,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:59:32,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:59:32,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:59:32,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:59:32,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:59:32,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:59:32,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:59:32,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:59:32,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:59:32,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:59:32,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:59:32,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:59:32,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:59:32,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:59:32,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:59:32,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:59:32,316 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:59:32,316 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:59:32,316 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:59:32,317 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:59:32,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:59:32,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:59:32,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:59:32,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:59:32,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:59:32,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:59:32,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:59:32,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:59:32,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:59:32,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:59:32,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:59:32,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:59:32,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:59:32,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:59:32,323 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:59:32,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:59:32,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:59:32,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:59:32,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:59:32,325 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:59:32,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:59:32,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:59:32,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:59:32,326 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:59:32,327 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:59:32,327 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2edae58c49fda124d3cdef0e9085ec6493b5502 [2020-10-20 07:59:32,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:59:32,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:59:32,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:59:32,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:59:32,604 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:59:32,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2020-10-20 07:59:32,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdeccfed/cc7136585aa24a3a94d5d89a5566a644/FLAG793b55629 [2020-10-20 07:59:33,194 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:59:33,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2020-10-20 07:59:33,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdeccfed/cc7136585aa24a3a94d5d89a5566a644/FLAG793b55629 [2020-10-20 07:59:33,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdeccfed/cc7136585aa24a3a94d5d89a5566a644 [2020-10-20 07:59:33,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:59:33,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:59:33,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:59:33,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:59:33,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:59:33,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea7d89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33, skipping insertion in model container [2020-10-20 07:59:33,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:59:33,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:59:33,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:59:33,860 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:59:33,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:59:33,889 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:59:33,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33 WrapperNode [2020-10-20 07:59:33,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:59:33,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:59:33,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:59:33,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:59:33,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:59:33,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:59:33,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:59:33,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:59:33,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... [2020-10-20 07:59:33,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:59:33,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:59:33,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:59:33,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:59:33,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:59:34,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:59:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:59:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:59:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-10-20 07:59:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-10-20 07:59:34,261 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:59:34,262 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 07:59:34,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:59:34 BoogieIcfgContainer [2020-10-20 07:59:34,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:59:34,266 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:59:34,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:59:34,271 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:59:34,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:59:34,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:59:33" (1/3) ... [2020-10-20 07:59:34,275 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ea54ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:59:34, skipping insertion in model container [2020-10-20 07:59:34,275 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:59:34,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:59:33" (2/3) ... [2020-10-20 07:59:34,276 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ea54ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:59:34, skipping insertion in model container [2020-10-20 07:59:34,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:59:34,276 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:59:34" (3/3) ... [2020-10-20 07:59:34,278 INFO L373 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2020-10-20 07:59:34,349 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:59:34,350 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:59:34,351 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:59:34,351 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:59:34,352 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:59:34,352 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:59:34,352 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:59:34,353 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:59:34,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-20 07:59:34,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:34,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:59:34,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:59:34,424 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:59:34,425 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:59:34,425 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:59:34,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-20 07:59:34,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:34,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:59:34,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:59:34,430 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:59:34,430 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:59:34,440 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 10#L31true call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 11#additionENTRYtrue [2020-10-20 07:59:34,440 INFO L796 eck$LassoCheckResult]: Loop: 11#additionENTRYtrue ~m := #in~m;~n := #in~n; 8#L16true assume !(0 == ~n); 4#L19true assume ~n > 0; 3#L20true call #t~ret7 := addition(1 + ~m, ~n - 1);< 11#additionENTRYtrue [2020-10-20 07:59:34,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:34,451 INFO L82 PathProgramCache]: Analyzing trace with hash 29888, now seen corresponding path program 1 times [2020-10-20 07:59:34,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:34,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236869299] [2020-10-20 07:59:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:34,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:34,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1450930, now seen corresponding path program 1 times [2020-10-20 07:59:34,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:34,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905958886] [2020-10-20 07:59:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:34,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:34,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1832919281, now seen corresponding path program 1 times [2020-10-20 07:59:34,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:34,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115925583] [2020-10-20 07:59:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:34,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:34,707 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:34,876 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:34,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:34,878 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:34,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:34,879 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:59:34,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:34,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:34,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:34,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2020-10-20 07:59:34,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:34,880 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:34,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:34,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,025 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:35,027 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:35,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:35,041 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:35,054 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:35,110 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:35,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:35,188 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:35,188 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=-1}, {addition_#in~m=-1}, {addition_#in~m=3}] Lambdas: [1, 4, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:35,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:35,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:35,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:35,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:35,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:35,294 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:35,295 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:35,331 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:35,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:35,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:59:35,433 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:35,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:35,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:35,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:35,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:59:35,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:35,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:35,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2020-10-20 07:59:35,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:35,435 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:35,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:35,533 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:35,539 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 07:59:35,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,563 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 [2020-10-20 07:59:35,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,595 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,640 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,676 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 [2020-10-20 07:59:35,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,708 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 [2020-10-20 07:59:35,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:35,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:35,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:35,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:35,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:35,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:35,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:35,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:35,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:59:35,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:59:35,796 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:35,802 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:59:35,802 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:59:35,802 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:59:35,803 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:35,831 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:59:35,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:35,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:59:35,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:35,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 07:59:35,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:59:35,990 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-20 07:59:35,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 4 states. [2020-10-20 07:59:36,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 4 states. Result 50 states and 68 transitions. Complement of second has 12 states. [2020-10-20 07:59:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:59:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:59:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-10-20 07:59:36,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-20 07:59:36,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:36,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-20 07:59:36,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:36,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2020-10-20 07:59:36,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:36,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2020-10-20 07:59:36,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:36,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 25 states and 28 transitions. [2020-10-20 07:59:36,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-20 07:59:36,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-20 07:59:36,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-10-20 07:59:36,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:59:36,308 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-20 07:59:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-10-20 07:59:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2020-10-20 07:59:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 07:59:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-10-20 07:59:36,347 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-20 07:59:36,348 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-20 07:59:36,348 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:59:36,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2020-10-20 07:59:36,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:36,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:59:36,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:59:36,352 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 07:59:36,353 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 07:59:36,353 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 126#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 127#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 128#additionENTRY ~m := #in~m;~n := #in~n; 130#L16 assume !(0 == ~n); 137#L19 assume !(~n > 0); 138#L22 [2020-10-20 07:59:36,354 INFO L796 eck$LassoCheckResult]: Loop: 138#L22 assume ~n < 0; 134#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 135#additionENTRY ~m := #in~m;~n := #in~n; 141#L16 assume !(0 == ~n); 140#L19 assume !(~n > 0); 138#L22 [2020-10-20 07:59:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash 890410423, now seen corresponding path program 1 times [2020-10-20 07:59:36,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:36,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749101612] [2020-10-20 07:59:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,414 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:36,416 INFO L82 PathProgramCache]: Analyzing trace with hash 57513645, now seen corresponding path program 1 times [2020-10-20 07:59:36,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:36,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704948338] [2020-10-20 07:59:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,430 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:36,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:36,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1572724041, now seen corresponding path program 1 times [2020-10-20 07:59:36,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:36,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821783124] [2020-10-20 07:59:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:36,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:36,474 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:36,582 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:36,582 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:36,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:36,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:36,583 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:59:36,583 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:36,583 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:36,583 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:36,583 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2020-10-20 07:59:36,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:36,584 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:36,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:36,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:36,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:36,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:36,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:36,716 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:36,716 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:36,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:36,731 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:36,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:36,798 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:37,051 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:37,051 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-2, addition_~m=-2} Honda state: {addition_#in~m=-2, addition_~m=-2} Generalized eigenvectors: [{addition_#in~m=-2, addition_~m=-2}, {addition_#in~m=1, addition_~m=1}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 1, 15] Nus: [0, 0] 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) [2020-10-20 07:59:37,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:37,106 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:37,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:37,112 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-20 07:59:37,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:37,169 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 07:59:37,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:37,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:46,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:59:46,838 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:46,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:46,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:46,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:46,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:59:46,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:46,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:46,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:46,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2020-10-20 07:59:46,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:46,839 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:46,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:46,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:46,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:46,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:46,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:46,934 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:46,934 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 07:59:46,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:46,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:46,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:46,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:46,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:46,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:46,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:46,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:46,961 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) [2020-10-20 07:59:47,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:47,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:47,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:47,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:47,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:47,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:47,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:47,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:47,009 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) [2020-10-20 07:59:47,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:47,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:47,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:47,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:47,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:47,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:47,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:47,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:47,054 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:59:47,060 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:59:47,060 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:59:47,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:59:47,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:59:47,064 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:59:47,064 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:47,089 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:59:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:47,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:59:47,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:47,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 07:59:47,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:59:47,260 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-10-20 07:59:47,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-20 07:59:47,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 30 states and 35 transitions. Complement of second has 13 states. [2020-10-20 07:59:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-20 07:59:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 07:59:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-10-20 07:59:47,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 5 letters. [2020-10-20 07:59:47,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:47,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2020-10-20 07:59:47,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:47,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 10 letters. [2020-10-20 07:59:47,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:47,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-10-20 07:59:47,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:47,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 29 transitions. [2020-10-20 07:59:47,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-20 07:59:47,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-20 07:59:47,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2020-10-20 07:59:47,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:59:47,324 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-10-20 07:59:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2020-10-20 07:59:47,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-20 07:59:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 07:59:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-20 07:59:47,357 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-20 07:59:47,357 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-20 07:59:47,357 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:59:47,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2020-10-20 07:59:47,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:47,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:59:47,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:59:47,359 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:59:47,359 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 07:59:47,359 INFO L794 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 240#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 238#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 239#additionENTRY ~m := #in~m;~n := #in~n; 253#L16 assume !(0 == ~n); 254#L19 assume !(~n > 0); 256#L22 assume ~n < 0; 246#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 245#additionENTRY ~m := #in~m;~n := #in~n; 247#L16 assume !(0 == ~n); 251#L19 assume ~n > 0; 242#L20 [2020-10-20 07:59:47,359 INFO L796 eck$LassoCheckResult]: Loop: 242#L20 call #t~ret7 := addition(1 + ~m, ~n - 1);< 241#additionENTRY ~m := #in~m;~n := #in~n; 244#L16 assume !(0 == ~n); 260#L19 assume ~n > 0; 242#L20 [2020-10-20 07:59:47,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:47,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1572724044, now seen corresponding path program 1 times [2020-10-20 07:59:47,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:47,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548109267] [2020-10-20 07:59:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:59:47,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548109267] [2020-10-20 07:59:47,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:59:47,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 07:59:47,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083567050] [2020-10-20 07:59:47,494 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:59:47,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:47,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2042800, now seen corresponding path program 2 times [2020-10-20 07:59:47,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:59:47,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276492354] [2020-10-20 07:59:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:59:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:47,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:59:47,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:59:47,507 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:59:47,566 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:47,566 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:47,566 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:47,566 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:47,566 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:59:47,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:47,567 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:47,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:47,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2020-10-20 07:59:47,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:47,567 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:47,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:47,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:47,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:47,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:47,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:47,650 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:47,650 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 07:59:47,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:47,661 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 07:59:47,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:47,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:47,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:47,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-4, addition_~m=-4} Honda state: {addition_#in~m=-4, addition_~m=-4} Generalized eigenvectors: [{addition_#in~m=-3, addition_~m=-3}, {addition_#in~m=4, addition_~m=4}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 1, 14] Nus: [0, 1] 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:47,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:47,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:47,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:47,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret7=0} Honda state: {addition_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-20 07:59:48,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:48,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:48,004 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:48,005 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 07:59:48,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:48,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:48,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:59:48,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:48,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:59:48,056 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:48,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:59:48,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:59:49,459 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:59:49,461 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:59:49,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:59:49,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:59:49,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:59:49,462 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:59:49,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:59:49,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:59:49,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:59:49,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2020-10-20 07:59:49,462 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:59:49,462 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:59:49,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:49,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:49,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:49,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:49,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:59:49,540 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:59:49,540 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 07:59:49,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:49,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:49,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:49,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:49,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:49,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:49,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:49,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:49,558 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 [2020-10-20 07:59:49,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:49,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:49,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:49,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:49,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:49,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:49,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:49,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:49,584 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 [2020-10-20 07:59:49,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:49,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:49,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:49,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:49,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:49,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:49,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:49,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:49,611 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 [2020-10-20 07:59:49,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:59:49,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:59:49,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:59:49,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:59:49,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:59:49,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:59:49,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:59:49,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:59:49,653 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:59:49,656 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 07:59:49,657 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 07:59:49,659 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:59:49,659 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:59:49,660 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:59:49,660 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2020-10-20 07:59:49,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:59:49,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:59:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:49,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 07:59:49,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:59:49,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 07:59:49,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:59:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:59:49,778 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-20 07:59:49,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-20 07:59:49,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 55 states and 63 transitions. Complement of second has 9 states. [2020-10-20 07:59:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:59:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:59:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-20 07:59:49,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-20 07:59:49,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:49,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-20 07:59:49,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:49,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 8 letters. [2020-10-20 07:59:49,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:59:49,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 63 transitions. [2020-10-20 07:59:49,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 07:59:49,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 55 transitions. [2020-10-20 07:59:49,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-20 07:59:49,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 07:59:49,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2020-10-20 07:59:49,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:59:49,833 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-10-20 07:59:49,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2020-10-20 07:59:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-10-20 07:59:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-20 07:59:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-20 07:59:49,837 INFO L714 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-20 07:59:49,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:59:49,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 07:59:49,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 07:59:49,842 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 5 states. [2020-10-20 07:59:49,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:59:49,897 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-10-20 07:59:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 07:59:49,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 31 transitions. [2020-10-20 07:59:49,899 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:59:49,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-10-20 07:59:49,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:59:49,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:59:49,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:59:49,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:59:49,900 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:59:49,900 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:59:49,900 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:59:49,900 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 07:59:49,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:59:49,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:59:49,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:59:49,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:59:49 BoogieIcfgContainer [2020-10-20 07:59:49,916 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:59:49,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:59:49,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:59:49,917 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:59:49,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:59:34" (3/4) ... [2020-10-20 07:59:49,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:59:49,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:59:49,933 INFO L168 Benchmark]: Toolchain (without parser) took 16395.83 ms. Allocated memory was 34.6 MB in the beginning and 55.1 MB in the end (delta: 20.4 MB). Free memory was 12.0 MB in the beginning and 37.9 MB in the end (delta: -25.9 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:59:49,933 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory is still 18.5 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 07:59:49,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.02 ms. Allocated memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: 7.3 MB). Free memory was 11.2 MB in the beginning and 25.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.30 ms. Allocated memory is still 41.9 MB. Free memory was 25.6 MB in the beginning and 24.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,940 INFO L168 Benchmark]: Boogie Preprocessor took 21.10 ms. Allocated memory is still 41.9 MB. Free memory was 24.1 MB in the beginning and 22.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,941 INFO L168 Benchmark]: RCFGBuilder took 314.46 ms. Allocated memory is still 41.9 MB. Free memory was 22.9 MB in the beginning and 20.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,943 INFO L168 Benchmark]: BuchiAutomizer took 15649.94 ms. Allocated memory was 41.9 MB in the beginning and 55.1 MB in the end (delta: 13.1 MB). Free memory was 20.4 MB in the beginning and 37.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,946 INFO L168 Benchmark]: Witness Printer took 13.06 ms. Allocated memory is still 55.1 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 49.0 kB). Peak memory consumption was 49.0 kB. Max. memory is 14.3 GB. [2020-10-20 07:59:49,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory is still 18.5 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 347.02 ms. Allocated memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: 7.3 MB). Free memory was 11.2 MB in the beginning and 25.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.30 ms. Allocated memory is still 41.9 MB. Free memory was 25.6 MB in the beginning and 24.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 21.10 ms. Allocated memory is still 41.9 MB. Free memory was 24.1 MB in the beginning and 22.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 314.46 ms. Allocated memory is still 41.9 MB. Free memory was 22.9 MB in the beginning and 20.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 15649.94 ms. Allocated memory was 41.9 MB in the beginning and 55.1 MB in the end (delta: 13.1 MB). Free memory was 20.4 MB in the beginning and 37.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 14.3 GB. * Witness Printer took 13.06 ms. Allocated memory is still 55.1 MB. Free memory was 37.9 MB in the beginning and 37.9 MB in the end (delta: 49.0 kB). Peak memory consumption was 49.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 14.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 51 SDslu, 17 SDs, 0 SdLazy, 87 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf93 smp91 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 12.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...