./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/cggmp2005b.i -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 7408fe5ba42f5c474832c90e26f3e7ef2342554c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:18:03,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:18:03,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:18:03,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:18:03,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:18:03,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:18:03,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:18:03,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:18:03,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:18:03,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:18:03,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:18:03,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:18:03,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:18:03,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:18:03,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:18:03,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:18:03,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:18:03,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:18:03,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:18:03,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:18:03,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:18:03,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:18:03,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:18:03,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:18:03,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:18:03,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:18:03,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:18:03,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:18:03,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:18:03,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:18:03,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:18:03,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:18:03,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:18:03,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:18:03,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:18:03,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:18:03,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:18:03,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:18:03,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:18:03,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:18:03,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:18:03,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:18:03,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:18:03,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:18:03,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:18:03,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:18:03,434 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:18:03,434 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:18:03,434 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:18:03,435 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:18:03,435 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:18:03,435 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:18:03,435 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:18:03,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:18:03,437 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:18:03,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:18:03,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:18:03,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:18:03,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:18:03,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:18:03,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:18:03,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:18:03,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:18:03,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:18:03,440 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:18:03,440 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:18:03,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:18:03,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:18:03,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:18:03,441 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:18:03,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:18:03,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:18:03,441 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:18:03,444 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:18:03,445 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 -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2019-11-28 03:18:03,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:18:03,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:18:03,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:18:03,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:18:03,808 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:18:03,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-28 03:18:03,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb802a13/8cdcc41c19ba4230ba6ab789a3321246/FLAG045b4a7ff [2019-11-28 03:18:04,338 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:18:04,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005b.i [2019-11-28 03:18:04,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb802a13/8cdcc41c19ba4230ba6ab789a3321246/FLAG045b4a7ff [2019-11-28 03:18:04,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb802a13/8cdcc41c19ba4230ba6ab789a3321246 [2019-11-28 03:18:04,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:18:04,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:18:04,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:18:04,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:18:04,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:18:04,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:04" (1/1) ... [2019-11-28 03:18:04,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc7dcd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:04, skipping insertion in model container [2019-11-28 03:18:04,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:04" (1/1) ... [2019-11-28 03:18:04,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:18:04,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:18:04,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:18:04,994 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:18:05,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:18:05,020 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:18:05,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05 WrapperNode [2019-11-28 03:18:05,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:18:05,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:18:05,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:18:05,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:18:05,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:18:05,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:18:05,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:18:05,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:18:05,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... [2019-11-28 03:18:05,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:18:05,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:18:05,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:18:05,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:18:05,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:05,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:18:05,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:18:05,342 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:18:05,342 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 03:18:05,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:05 BoogieIcfgContainer [2019-11-28 03:18:05,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:18:05,344 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:18:05,344 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:18:05,346 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:18:05,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:18:05,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:18:04" (1/3) ... [2019-11-28 03:18:05,348 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f385d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:18:05, skipping insertion in model container [2019-11-28 03:18:05,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:18:05,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:05" (2/3) ... [2019-11-28 03:18:05,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f385d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:18:05, skipping insertion in model container [2019-11-28 03:18:05,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:18:05,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:05" (3/3) ... [2019-11-28 03:18:05,351 INFO L371 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2019-11-28 03:18:05,397 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:18:05,398 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:18:05,398 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:18:05,398 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:18:05,398 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:18:05,398 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:18:05,399 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:18:05,399 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:18:05,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-28 03:18:05,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:18:05,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:05,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:05,445 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 03:18:05,445 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:18:05,445 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:18:05,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-28 03:18:05,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:18:05,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:05,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:05,448 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 03:18:05,448 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:18:05,454 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2019-11-28 03:18:05,455 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 3#L17-2true assume !(main_~j~0 < 20); 13#L17-3true main_~k~0 := 4; 11#L21-2true assume !true; 8#L21-3true [2019-11-28 03:18:05,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:05,461 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 03:18:05,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:05,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695067037] [2019-11-28 03:18:05,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,560 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:05,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2019-11-28 03:18:05,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:05,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023285246] [2019-11-28 03:18:05,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:05,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023285246] [2019-11-28 03:18:05,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:18:05,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 03:18:05,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427585601] [2019-11-28 03:18:05,606 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:18:05,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:18:05,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 03:18:05,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 03:18:05,626 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-11-28 03:18:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:18:05,633 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-28 03:18:05,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 03:18:05,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2019-11-28 03:18:05,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:18:05,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2019-11-28 03:18:05,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 03:18:05,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 03:18:05,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-11-28 03:18:05,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:18:05,644 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-28 03:18:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-11-28 03:18:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-28 03:18:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:18:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-28 03:18:05,667 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-28 03:18:05,667 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-28 03:18:05,667 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:18:05,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-28 03:18:05,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:18:05,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:05,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:05,668 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 03:18:05,668 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:18:05,669 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 35#L21-3 [2019-11-28 03:18:05,669 INFO L796 eck$LassoCheckResult]: Loop: 35#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 32#L17-2 assume !(main_~j~0 < 20); 33#L17-3 main_~k~0 := 4; 36#L21-2 assume !(main_~k~0 <= 3); 35#L21-3 [2019-11-28 03:18:05,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:05,669 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-28 03:18:05,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:05,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348694924] [2019-11-28 03:18:05,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,677 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:05,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:05,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2019-11-28 03:18:05,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:05,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237140238] [2019-11-28 03:18:05,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:05,692 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:05,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2019-11-28 03:18:05,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:05,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680811009] [2019-11-28 03:18:05,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:05,737 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680811009] [2019-11-28 03:18:05,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:18:05,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 03:18:05,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546296693] [2019-11-28 03:18:05,881 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:05,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:05,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:05,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:05,885 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:18:05,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:05,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:05,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:05,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-28 03:18:05,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:05,888 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:05,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:05,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:05,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:06,075 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) [2019-11-28 03:18:06,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:06,093 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 [2019-11-28 03:18:06,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:18:06,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:18:06,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:06,121 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:18:06,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:18:06,144 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,159 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:18:06,162 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:06,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:06,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:06,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:06,163 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:18:06,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:06,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:06,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2019-11-28 03:18:06,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:06,165 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:06,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,240 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:06,246 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:18:06,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:18:06,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:06,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:18:06,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:06,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:06,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:06,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:18:06,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,269 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Exception during sending of exit command (exit): Broken pipe 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) [2019-11-28 03:18:06,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:18:06,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:06,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:18:06,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:06,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:06,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:06,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:18:06,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,300 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:18:06,305 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:18:06,305 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,319 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:18:06,319 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:18:06,319 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:18:06,320 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2019-11-28 03:18:06,327 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:18:06,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:06,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:18:06,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:06,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:06,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:06,458 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:18:06,460 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-11-28 03:18:06,508 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 4 states. [2019-11-28 03:18:06,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:18:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-28 03:18:06,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-28 03:18:06,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:06,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-28 03:18:06,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:06,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2019-11-28 03:18:06,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:06,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2019-11-28 03:18:06,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-28 03:18:06,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2019-11-28 03:18:06,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 03:18:06,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-28 03:18:06,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2019-11-28 03:18:06,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:18:06,526 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2019-11-28 03:18:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2019-11-28 03:18:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-28 03:18:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 03:18:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2019-11-28 03:18:06,530 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2019-11-28 03:18:06,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:18:06,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:18:06,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:18:06,532 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2019-11-28 03:18:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:18:06,543 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2019-11-28 03:18:06,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:18:06,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2019-11-28 03:18:06,545 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-28 03:18:06,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2019-11-28 03:18:06,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 03:18:06,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 03:18:06,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2019-11-28 03:18:06,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:18:06,549 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-28 03:18:06,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2019-11-28 03:18:06,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 03:18:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 03:18:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2019-11-28 03:18:06,556 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-28 03:18:06,556 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2019-11-28 03:18:06,556 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:18:06,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2019-11-28 03:18:06,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-28 03:18:06,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:06,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:06,560 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:18:06,560 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:18:06,560 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 112#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 113#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-28 03:18:06,561 INFO L796 eck$LassoCheckResult]: Loop: 107#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2019-11-28 03:18:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:06,561 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2019-11-28 03:18:06,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:06,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779395675] [2019-11-28 03:18:06,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,589 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:06,591 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-28 03:18:06,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:06,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044325604] [2019-11-28 03:18:06,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,608 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:06,609 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2019-11-28 03:18:06,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:06,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191318555] [2019-11-28 03:18:06,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:06,646 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:06,719 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:06,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:06,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:06,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:06,720 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:18:06,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:06,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:06,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-28 03:18:06,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:06,721 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:06,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:06,795 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:06,795 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:06,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:18:06,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:18:06,807 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=9} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:18:06,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:06,822 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:06,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:18:06,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:18:08,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:18:08,832 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:08,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:08,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:08,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:08,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:18:08,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:08,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:08,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:08,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2019-11-28 03:18:08,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:08,834 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:08,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:08,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:08,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:08,929 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:08,929 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 03:18:08,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:18:08,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:08,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:08,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:08,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:08,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:18:08,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:18:08,959 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 [2019-11-28 03:18:08,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:18:08,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:08,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:08,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:08,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:08,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:18:08,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:18:08,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:18:09,007 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 03:18:09,007 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. 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) [2019-11-28 03:18:09,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,026 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:18:09,026 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:18:09,027 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2019-11-28 03:18:09,034 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:18:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,110 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:09,111 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2019-11-28 03:18:09,111 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-28 03:18:09,163 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 20 states and 33 transitions. Complement of second has 6 states. [2019-11-28 03:18:09,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:18:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-11-28 03:18:09,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-28 03:18:09,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 03:18:09,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 03:18:09,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2019-11-28 03:18:09,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:18:09,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2019-11-28 03:18:09,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 03:18:09,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-28 03:18:09,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2019-11-28 03:18:09,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:18:09,168 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2019-11-28 03:18:09,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2019-11-28 03:18:09,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 03:18:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:18:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2019-11-28 03:18:09,171 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-28 03:18:09,171 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2019-11-28 03:18:09,172 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:18:09,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2019-11-28 03:18:09,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:18:09,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:09,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:09,173 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:18:09,173 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:18:09,173 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 187#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 188#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 183#L17-2 assume !(main_~j~0 < 20); 184#L17-3 main_~k~0 := 4; 191#L21-2 [2019-11-28 03:18:09,174 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2019-11-28 03:18:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,174 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-11-28 03:18:09,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:09,175 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767988386] [2019-11-28 03:18:09,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:09,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767988386] [2019-11-28 03:18:09,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669893656] [2019-11-28 03:18:09,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-28 03:18:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:18:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:09,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:18:09,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-28 03:18:09,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504175705] [2019-11-28 03:18:09,289 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:18:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,289 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2019-11-28 03:18:09,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:09,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874802269] [2019-11-28 03:18:09,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:09,295 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:09,306 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:09,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:09,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:09,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:09,307 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:18:09,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:09,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:09,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-28 03:18:09,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:09,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:09,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:09,332 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:09,332 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:09,341 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:18:09,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:18:09,360 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:18:09,364 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:09,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:09,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:09,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:09,364 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:18:09,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:09,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:09,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2019-11-28 03:18:09,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:09,365 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:09,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:09,389 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:09,389 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:18:09,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:09,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:18:09,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:09,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:09,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:09,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:18:09,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:18:09,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:18:09,415 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:18:09,416 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:18:09,425 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:18:09,425 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:18:09,425 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-28 03:18:09,428 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:18:09,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,490 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:09,491 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:18:09,492 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2019-11-28 03:18:09,516 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 47 states and 75 transitions. Complement of second has 5 states. [2019-11-28 03:18:09,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 03:18:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-28 03:18:09,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-28 03:18:09,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2019-11-28 03:18:09,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 03:18:09,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:09,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2019-11-28 03:18:09,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:18:09,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2019-11-28 03:18:09,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-28 03:18:09,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-28 03:18:09,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2019-11-28 03:18:09,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:18:09,527 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-11-28 03:18:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2019-11-28 03:18:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2019-11-28 03:18:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:18:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2019-11-28 03:18:09,534 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2019-11-28 03:18:09,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:18:09,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 03:18:09,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-28 03:18:09,536 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2019-11-28 03:18:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:18:09,602 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2019-11-28 03:18:09,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:18:09,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2019-11-28 03:18:09,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:18:09,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2019-11-28 03:18:09,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 03:18:09,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 03:18:09,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2019-11-28 03:18:09,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:18:09,608 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-28 03:18:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2019-11-28 03:18:09,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 03:18:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 03:18:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2019-11-28 03:18:09,614 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-28 03:18:09,614 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2019-11-28 03:18:09,615 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:18:09,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2019-11-28 03:18:09,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:18:09,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:18:09,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:18:09,620 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2019-11-28 03:18:09,620 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:18:09,621 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2019-11-28 03:18:09,621 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2019-11-28 03:18:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,622 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2019-11-28 03:18:09,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:09,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406439591] [2019-11-28 03:18:09,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 03:18:09,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406439591] [2019-11-28 03:18:09,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435454711] [2019-11-28 03:18:09,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-28 03:18:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:09,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:18:09,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:18:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 03:18:09,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:18:09,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-28 03:18:09,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005507526] [2019-11-28 03:18:09,803 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:18:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:09,803 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2019-11-28 03:18:09,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:18:09,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841529905] [2019-11-28 03:18:09,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:18:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:18:09,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:18:09,828 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:09,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:09,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:09,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:09,829 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:18:09,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:09,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:09,829 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-28 03:18:09,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:09,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:09,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:09,852 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:09,853 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:18:09,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:18:09,863 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) [2019-11-28 03:18:09,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:18:09,880 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,889 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:18:09,891 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:18:09,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:18:09,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:18:09,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:18:09,891 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:18:09,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:18:09,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:18:09,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2019-11-28 03:18:09,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:18:09,892 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:18:09,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:18:09,932 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:18:09,933 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) [2019-11-28 03:18:09,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:09,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:18:09,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:18:09,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:18:09,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:18:09,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:18:09,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:18:09,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:18:09,961 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:18:09,966 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:18:09,966 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:18:10,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:18:10,003 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:18:10,004 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:18:10,004 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2019-11-28 03:18:10,007 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:18:10,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,054 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:10,055 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:18:10,055 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-28 03:18:10,076 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-28 03:18:10,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 03:18:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-28 03:18:10,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-28 03:18:10,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:10,078 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:18:10,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,116 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:10,116 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:18:10,117 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-28 03:18:10,131 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2019-11-28 03:18:10,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 03:18:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2019-11-28 03:18:10,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-28 03:18:10,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:10,135 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:18:10,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:18:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:18:10,172 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:18:10,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:18:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:18:10,173 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 03:18:10,173 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2019-11-28 03:18:10,190 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 48 transitions. Complement of second has 4 states. [2019-11-28 03:18:10,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:18:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 03:18:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-11-28 03:18:10,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-28 03:18:10,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:10,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2019-11-28 03:18:10,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:10,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-28 03:18:10,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:18:10,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2019-11-28 03:18:10,193 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:18:10,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-28 03:18:10,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:18:10,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:18:10,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:18:10,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:18:10,193 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:18:10,194 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:18:10,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:18:10,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 03:18:10,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-28 03:18:10,194 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2019-11-28 03:18:10,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:18:10,195 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-28 03:18:10,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 03:18:10,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-28 03:18:10,195 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:18:10,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 03:18:10,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:18:10,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:18:10,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:18:10,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:18:10,196 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:18:10,196 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:18:10,196 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:18:10,196 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:18:10,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:18:10,196 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:18:10,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:18:10,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:18:10 BoogieIcfgContainer [2019-11-28 03:18:10,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:18:10,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:18:10,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:18:10,204 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:18:10,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:05" (3/4) ... [2019-11-28 03:18:10,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:18:10,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:18:10,211 INFO L168 Benchmark]: Toolchain (without parser) took 5452.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -197.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:18:10,211 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:18:10,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.47 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:18:10,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:18:10,213 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:18:10,214 INFO L168 Benchmark]: RCFGBuilder took 216.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:18:10,215 INFO L168 Benchmark]: BuchiAutomizer took 4859.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -40.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:18:10,215 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:18:10,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.47 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 216.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4859.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -40.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 45 SDslu, 34 SDs, 0 SdLazy, 44 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...