./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/NO_23.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:58:41,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:58:41,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:58:41,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:58:41,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:58:41,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:58:41,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:58:41,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:58:41,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:58:41,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:58:41,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:58:41,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:58:41,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:58:41,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:58:41,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:58:41,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:58:41,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:58:41,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:58:41,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:58:41,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:58:41,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:58:41,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:58:41,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:58:41,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:58:41,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:58:41,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:58:41,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:58:41,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:58:41,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:58:41,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:58:41,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:58:41,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:58:41,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:58:41,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:58:41,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:58:41,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:58:41,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:58:41,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:58:41,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:58:41,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:58:41,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:58:41,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 02:58:41,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:58:41,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:58:41,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:58:41,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:58:41,712 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:58:41,712 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 02:58:41,713 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 02:58:41,713 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 02:58:41,713 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 02:58:41,713 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 02:58:41,714 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 02:58:41,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:58:41,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:58:41,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:58:41,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:58:41,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 02:58:41,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 02:58:41,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 02:58:41,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:58:41,716 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 02:58:41,717 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:58:41,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 02:58:41,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:58:41,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:58:41,718 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 02:58:41,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:58:41,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:58:41,719 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 02:58:41,720 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 02:58:41,720 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2019-11-28 02:58:42,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:58:42,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:58:42,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:58:42,038 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:58:42,039 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:58:42,040 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-28 02:58:42,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09558151/2a4f1d8ffefe4e1aa132c187471c1b6f/FLAG97c5e17e6 [2019-11-28 02:58:42,619 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:58:42,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_23.c [2019-11-28 02:58:42,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09558151/2a4f1d8ffefe4e1aa132c187471c1b6f/FLAG97c5e17e6 [2019-11-28 02:58:42,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09558151/2a4f1d8ffefe4e1aa132c187471c1b6f [2019-11-28 02:58:42,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:58:42,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:58:42,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:58:42,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:58:42,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:58:42,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:42" (1/1) ... [2019-11-28 02:58:42,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bd84bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:42, skipping insertion in model container [2019-11-28 02:58:42,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:58:42" (1/1) ... [2019-11-28 02:58:42,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:58:43,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:58:43,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:58:43,191 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:58:43,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:58:43,224 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:58:43,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43 WrapperNode [2019-11-28 02:58:43,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:58:43,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:58:43,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:58:43,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:58:43,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:58:43,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:58:43,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:58:43,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:58:43,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (1/1) ... [2019-11-28 02:58:43,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:58:43,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:58:43,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:58:43,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:58:43,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (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 02:58:43,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:58:43,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:58:43,523 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:58:43,523 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:58:43,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:43 BoogieIcfgContainer [2019-11-28 02:58:43,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:58:43,525 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 02:58:43,525 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 02:58:43,528 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 02:58:43,529 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:43,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:58:42" (1/3) ... [2019-11-28 02:58:43,530 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c5b9d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:43, skipping insertion in model container [2019-11-28 02:58:43,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:43,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:58:43" (2/3) ... [2019-11-28 02:58:43,531 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c5b9d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:58:43, skipping insertion in model container [2019-11-28 02:58:43,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:58:43,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:43" (3/3) ... [2019-11-28 02:58:43,532 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2019-11-28 02:58:43,574 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 02:58:43,574 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 02:58:43,574 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 02:58:43,574 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:58:43,575 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:58:43,575 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 02:58:43,575 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:58:43,575 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 02:58:43,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 02:58:43,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:43,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:43,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:43,614 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:58:43,615 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:43,615 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 02:58:43,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 02:58:43,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:43,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:43,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:43,616 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:58:43,617 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:43,625 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2019-11-28 02:58:43,625 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2019-11-28 02:58:43,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 02:58:43,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:43,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87520727] [2019-11-28 02:58:43,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-28 02:58:43,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:43,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593228490] [2019-11-28 02:58:43,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:43,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-28 02:58:43,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:43,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958138223] [2019-11-28 02:58:43,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:43,765 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:43,849 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:43,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:43,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:43,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:43,851 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:43,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:43,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:43,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:43,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-28 02:58:43,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:43,864 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:43,926 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 02:58:43,939 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 02:58:43,944 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 02:58:44,034 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:44,035 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:44,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:44,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:44,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:44,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:44,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:44,076 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:44,099 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:44,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:44,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:44,144 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:44,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:44,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:44,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:44,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:44,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:44,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:44,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2019-11-28 02:58:44,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:44,146 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:44,148 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 02:58:44,153 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 02:58:44,171 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 02:58:44,252 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:44,256 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,264 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 02:58:44,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:44,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:44,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:44,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:44,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:44,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:44,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] 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 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 02:58:44,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 02:58:44,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:44,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:44,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:44,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:44,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:44,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:44,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:44,322 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:58:44,326 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:58:44,327 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 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 02:58:44,334 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:58:44,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:58:44,335 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:58:44,336 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-28 02:58:44,348 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 02:58:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:44,400 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:44,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:44,413 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:44,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:44,418 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 02:58:44,437 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 02:58:44,438 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-28 02:58:44,505 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-11-28 02:58:44,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:58:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:44,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-28 02:58:44,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-28 02:58:44,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 02:58:44,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-28 02:58:44,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-28 02:58:44,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:44,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-28 02:58:44,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 02:58:44,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 02:58:44,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-28 02:58:44,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:44,532 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:58:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-28 02:58:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-28 02:58:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 02:58:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 02:58:44,562 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:58:44,562 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 02:58:44,562 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 02:58:44,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 02:58:44,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:44,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:44,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:44,563 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 02:58:44,564 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:44,564 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2019-11-28 02:58:44,564 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2019-11-28 02:58:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:44,564 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-28 02:58:44,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:44,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776714080] [2019-11-28 02:58:44,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:44,598 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 02:58:44,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776714080] [2019-11-28 02:58:44,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:58:44,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:58:44,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595888479] [2019-11-28 02:58:44,603 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 02:58:44,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:44,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-28 02:58:44,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:44,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75795463] [2019-11-28 02:58:44,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:44,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:44,633 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:44,634 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:44,634 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:44,634 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:44,634 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:44,634 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:44,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:44,635 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-28 02:58:44,635 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:44,635 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:44,637 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 02:58:44,642 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 02:58:44,652 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 02:58:44,707 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:44,708 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:44,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:44,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:44,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 02:58:44,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:44,735 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 02:58:44,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:44,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:44,771 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:44,773 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:44,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:44,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:44,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:44,774 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:44,774 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,774 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:44,774 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:44,774 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2019-11-28 02:58:44,774 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:44,775 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:44,776 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 02:58:44,783 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 02:58:44,794 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 02:58:44,844 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:44,844 INFO L489 LassoAnalysis]: Using template 'affine'. 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 02:58:44,850 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 02:58:44,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:44,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:44,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:44,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:44,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:44,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:44,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:44,856 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:58:44,858 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:58:44,859 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:44,864 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:58:44,864 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:58:44,865 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:58:44,865 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-28 02:58:44,867 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 02:58:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:44,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:44,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:44,905 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:44,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:44,906 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 02:58:44,907 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 02:58:44,908 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 02:58:44,923 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-11-28 02:58:44,929 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 02:58:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-28 02:58:44,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 02:58:44,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 02:58:44,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-28 02:58:44,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:44,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-28 02:58:44,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:44,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-28 02:58:44,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-28 02:58:44,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-28 02:58:44,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-28 02:58:44,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:44,938 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-28 02:58:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-28 02:58:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 02:58:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 02:58:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-28 02:58:44,942 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-28 02:58:44,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:58:44,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:58:44,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:58:44,947 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2019-11-28 02:58:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:58:44,963 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-11-28 02:58:44,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:58:44,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2019-11-28 02:58:44,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:44,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2019-11-28 02:58:44,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-28 02:58:44,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-28 02:58:44,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-28 02:58:44,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:44,968 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-28 02:58:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-28 02:58:44,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-28 02:58:44,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 02:58:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-11-28 02:58:44,973 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 02:58:44,973 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-11-28 02:58:44,973 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 02:58:44,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-11-28 02:58:44,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 02:58:44,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:44,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:44,978 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2019-11-28 02:58:44,979 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 02:58:44,979 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2019-11-28 02:58:44,979 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2019-11-28 02:58:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2019-11-28 02:58:44,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:44,982 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864215935] [2019-11-28 02:58:44,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-28 02:58:45,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864215935] [2019-11-28 02:58:45,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:58:45,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:58:45,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121786707] [2019-11-28 02:58:45,019 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 02:58:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-28 02:58:45,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:45,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013251544] [2019-11-28 02:58:45,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,026 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:45,063 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:45,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:45,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:45,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:45,064 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:45,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,065 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:45,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:45,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-28 02:58:45,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:45,066 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:45,068 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 02:58:45,073 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 02:58:45,079 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 02:58:45,124 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:45,124 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:45,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:58:45,136 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 02:58:45,136 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2019-11-28 02:58:45,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:45,150 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:45,171 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,195 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:45,197 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:45,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:45,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:45,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:45,197 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:45,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:45,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:45,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2019-11-28 02:58:45,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:45,198 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:45,199 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 02:58:45,204 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 02:58:45,210 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 02:58:45,248 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:45,248 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) [2019-11-28 02:58:45,254 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 02:58:45,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:45,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:45,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,276 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 02:58:45,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:45,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:45,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:45,285 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:58:45,288 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:58:45,288 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,294 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:58:45,294 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:58:45,294 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:58:45,295 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2019-11-28 02:58:45,297 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 02:58:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,342 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,343 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 02:58:45,344 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 02:58:45,344 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 02:58:45,372 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-28 02:58:45,374 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 02:58:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-28 02:58:45,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 02:58:45,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:45,375 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:58:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,409 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,410 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 02:58:45,410 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 02:58:45,411 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 02:58:45,424 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2019-11-28 02:58:45,425 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 02:58:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-28 02:58:45,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 02:58:45,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:45,426 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 02:58:45,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:58:45,457 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:58:45,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:58:45,459 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 02:58:45,459 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 02:58:45,459 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-28 02:58:45,478 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2019-11-28 02:58:45,480 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 02:58:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 02:58:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-28 02:58:45,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 02:58:45,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:45,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-28 02:58:45,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:45,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-28 02:58:45,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:58:45,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2019-11-28 02:58:45,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 02:58:45,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2019-11-28 02:58:45,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-28 02:58:45,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-28 02:58:45,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2019-11-28 02:58:45,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:45,487 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2019-11-28 02:58:45,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2019-11-28 02:58:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2019-11-28 02:58:45,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 02:58:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-28 02:58:45,493 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-28 02:58:45,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:58:45,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:58:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:58:45,494 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2019-11-28 02:58:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:58:45,508 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-28 02:58:45,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:58:45,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-28 02:58:45,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-28 02:58:45,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2019-11-28 02:58:45,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 02:58:45,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 02:58:45,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2019-11-28 02:58:45,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 02:58:45,512 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-11-28 02:58:45,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2019-11-28 02:58:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2019-11-28 02:58:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 02:58:45,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-11-28 02:58:45,513 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-28 02:58:45,513 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-11-28 02:58:45,513 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 02:58:45,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-11-28 02:58:45,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 02:58:45,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:58:45,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:58:45,516 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 02:58:45,516 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-28 02:58:45,516 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2019-11-28 02:58:45,516 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-28 02:58:45,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,517 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-28 02:58:45,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:45,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801771977] [2019-11-28 02:58:45,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:45,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2019-11-28 02:58:45,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:45,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23500218] [2019-11-28 02:58:45,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:45,554 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2019-11-28 02:58:45,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:45,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881055390] [2019-11-28 02:58:45,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:45,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:45,618 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:45,619 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:45,619 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:45,619 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:45,619 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:58:45,619 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,619 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:45,619 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:45,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-28 02:58:45,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:45,620 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:45,621 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 02:58:45,631 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 02:58:45,635 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 02:58:45,637 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 02:58:45,694 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:45,694 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 02:58:45,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:58:45,700 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 02:58:45,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:58:45,730 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 02:58:45,742 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:58:45,745 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:58:45,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:58:45,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:58:45,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:58:45,746 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:58:45,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,746 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:58:45,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:58:45,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2019-11-28 02:58:45,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:58:45,747 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:58:45,749 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 02:58:45,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:58:45,763 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 02:58:45,764 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 02:58:45,807 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:58:45,807 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 02:58:45,824 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 02:58:45,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:45,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:45,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,855 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 02:58:45,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:45,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:45,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:45,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 23 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,901 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 02:58:45,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:45,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:45,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:58:45,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,906 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,913 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:58:45,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:45,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:58:45,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:45,925 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,930 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 02:58:45,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,933 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:45,938 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:45,938 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,953 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 [2019-11-28 02:58:45,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,956 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:45,959 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:45,959 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,972 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 02:58:45,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:45,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,975 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:45,976 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-28 02:58:45,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:45,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:45,985 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 02:58:45,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:45,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:45,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:45,988 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:45,991 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:45,991 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,030 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,041 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 02:58:46,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,044 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,053 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,054 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,066 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,074 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 02:58:46,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,076 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,081 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,081 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 02:58:46,088 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,095 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 02:58:46,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,098 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,099 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 02:58:46,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,108 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 02:58:46,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,111 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,114 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,114 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,123 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,128 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 02:58:46,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,130 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,136 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,137 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,156 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 02:58:46,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,158 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,162 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,163 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 02:58:46,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,180 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,180 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-28 02:58:46,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,190 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 02:58:46,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:58:46,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,192 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,196 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,196 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,206 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,211 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 02:58:46,213 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,213 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,214 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:46,218 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:46,218 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,239 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 02:58:46,242 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,242 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,242 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:46,247 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:46,248 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-28 02:58:46,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 02:58:46,267 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,267 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,268 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:46,269 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-28 02:58:46,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,283 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 02:58:46,285 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,285 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,286 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:58:46,289 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 02:58:46,289 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-28 02:58:46,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,298 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,303 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 02:58:46,305 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,306 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-28 02:58:46,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,306 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,312 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,312 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,335 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 02:58:46,337 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,338 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-28 02:58:46,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,338 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,342 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,342 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,359 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 02:58:46,362 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,362 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-28 02:58:46,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,362 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,364 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 02:58:46,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,376 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 02:58:46,378 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,378 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-11-28 02:58:46,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,379 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,383 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,383 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,394 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,399 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 02:58:46,402 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,402 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,403 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,410 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,410 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,438 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 02:58:46,440 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,441 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,441 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,446 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,446 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,459 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,466 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 02:58:46,469 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,469 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,469 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,471 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-11-28 02:58:46,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,483 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 02:58:46,486 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,486 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,486 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-11-28 02:58:46,491 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-11-28 02:58:46,491 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,504 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,510 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 02:58:46,512 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,512 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,513 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,517 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,517 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,536 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 02:58:46,540 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,540 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,541 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,547 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,548 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 02:58:46,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,566 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 02:58:46,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,568 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,568 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,569 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 02:58:46,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:58:46,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,587 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 02:58:46,589 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,589 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-11-28 02:58:46,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,589 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-28 02:58:46,592 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-28 02:58:46,592 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,599 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,600 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,605 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 02:58:46,608 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,608 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,609 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-28 02:58:46,618 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-28 02:58:46,618 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-11-28 02:58:46,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,651 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 02:58:46,653 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,653 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,654 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-28 02:58:46,658 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-28 02:58:46,658 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,669 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,675 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 02:58:46,677 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,678 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:58:46,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,678 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-28 02:58:46,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:58:46,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,683 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:58:46,690 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 02:58:46,692 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-11-28 02:58:46,692 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-11-28 02:58:46,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:58:46,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:58:46,692 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-11-28 02:58:46,696 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-11-28 02:58:46,696 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:58:46,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:58:46,708 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-11-28 02:58:46,708 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-28 02:58:46,708 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2019-11-28 02:58:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2019-11-28 02:58:46,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:46,710 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345054118] [2019-11-28 02:58:46,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,719 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:46,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2019-11-28 02:58:46,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:46,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735594191] [2019-11-28 02:58:46,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:58:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2019-11-28 02:58:46,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:58:46,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254205042] [2019-11-28 02:58:46,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:58:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:58:46,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:58:46,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:58:46 BoogieIcfgContainer [2019-11-28 02:58:46,822 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 02:58:46,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:58:46,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:58:46,822 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:58:46,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:58:43" (3/4) ... [2019-11-28 02:58:46,826 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 02:58:46,886 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:58:46,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:58:46,890 INFO L168 Benchmark]: Toolchain (without parser) took 3908.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -56.7 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:58:46,890 INFO L168 Benchmark]: CDTParser took 0.21 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 02:58:46,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:58:46,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:58:46,892 INFO L168 Benchmark]: Boogie Preprocessor took 74.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:58:46,895 INFO L168 Benchmark]: RCFGBuilder took 187.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:58:46,897 INFO L168 Benchmark]: BuchiAutomizer took 3296.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 171.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:58:46,900 INFO L168 Benchmark]: Witness Printer took 64.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 02:58:46,905 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 244.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3296.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.8 MB). Peak memory consumption was 171.2 MB. Max. memory is 11.5 GB. * Witness Printer took 64.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...