./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer --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 a5e4c58569d8caa47946d30f6cb501096837aef1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:24:07,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:24:07,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:24:07,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:24:07,178 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:24:07,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:24:07,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:24:07,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:24:07,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:24:07,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:24:07,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:24:07,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:24:07,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:24:07,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:24:07,184 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:24:07,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:24:07,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:24:07,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:24:07,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:24:07,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:24:07,189 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:24:07,190 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:24:07,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:24:07,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:24:07,191 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:24:07,192 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:24:07,193 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:24:07,193 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:24:07,194 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:24:07,194 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:24:07,194 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:24:07,195 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:24:07,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:24:07,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:24:07,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:24:07,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:24:07,196 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 21:24:07,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:24:07,206 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:24:07,207 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 21:24:07,207 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 21:24:07,207 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 21:24:07,207 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 21:24:07,208 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 21:24:07,208 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:24:07,209 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 21:24:07,210 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:24:07,210 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:24:07,210 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 21:24:07,210 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:24:07,210 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 21:24:07,210 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 21:24:07,211 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 21:24:07,211 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer 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 -> a5e4c58569d8caa47946d30f6cb501096837aef1 [2018-11-22 21:24:07,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:24:07,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:24:07,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:24:07,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:24:07,244 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:24:07,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative_true-termination_true-no-overflow.c [2018-11-22 21:24:07,287 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/data/d534209d0/81e5d672a6f14226a75b4e34a8381f4d/FLAGb79a47bec [2018-11-22 21:24:07,687 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:24:07,687 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/sv-benchmarks/c/termination-restricted-15/McCarthyIterative_true-termination_true-no-overflow.c [2018-11-22 21:24:07,692 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/data/d534209d0/81e5d672a6f14226a75b4e34a8381f4d/FLAGb79a47bec [2018-11-22 21:24:07,701 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/data/d534209d0/81e5d672a6f14226a75b4e34a8381f4d [2018-11-22 21:24:07,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:24:07,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:24:07,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:24:07,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:24:07,708 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:24:07,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07, skipping insertion in model container [2018-11-22 21:24:07,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:24:07,732 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:24:07,841 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:24:07,843 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:24:07,851 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:24:07,858 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:24:07,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07 WrapperNode [2018-11-22 21:24:07,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:24:07,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:24:07,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:24:07,859 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:24:07,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:24:07,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:24:07,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:24:07,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:24:07,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... [2018-11-22 21:24:07,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:24:07,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:24:07,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:24:07,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:24:07,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:24:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:24:08,031 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:24:08,031 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 21:24:08,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:24:08 BoogieIcfgContainer [2018-11-22 21:24:08,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:24:08,032 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 21:24:08,032 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 21:24:08,034 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 21:24:08,034 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:24:08,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 09:24:07" (1/3) ... [2018-11-22 21:24:08,035 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c53727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 09:24:08, skipping insertion in model container [2018-11-22 21:24:08,035 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:24:08,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:24:07" (2/3) ... [2018-11-22 21:24:08,035 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c53727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 09:24:08, skipping insertion in model container [2018-11-22 21:24:08,035 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:24:08,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:24:08" (3/3) ... [2018-11-22 21:24:08,036 INFO L375 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative_true-termination_true-no-overflow.c [2018-11-22 21:24:08,071 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:24:08,072 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 21:24:08,072 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 21:24:08,072 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 21:24:08,072 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:24:08,072 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:24:08,072 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 21:24:08,072 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:24:08,072 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 21:24:08,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-22 21:24:08,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:08,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:08,097 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:24:08,097 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:08,097 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 21:24:08,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-22 21:24:08,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:08,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:08,098 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:24:08,098 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:08,102 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 3#L12-2true [2018-11-22 21:24:08,102 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~c~0 > 0); 6#L12true assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 3#L12-2true [2018-11-22 21:24:08,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,106 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-22 21:24:08,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-22 21:24:08,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,177 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-22 21:24:08,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,227 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:08,228 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:08,228 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:08,228 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:08,228 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:08,228 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:08,229 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:08,229 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:08,229 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 21:24:08,229 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:08,229 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:08,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,404 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:08,405 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,414 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:08,414 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:08,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:08,462 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:08,463 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:08,463 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:08,463 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:08,463 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:08,464 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:08,464 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:08,464 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:08,464 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:08,464 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 21:24:08,464 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:08,464 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:08,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,533 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:08,537 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:08,538 INFO L122 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 [2018-11-22 21:24:08,539 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:08,539 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:08,540 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:08,540 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:08,540 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:08,541 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:08,541 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:08,547 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:08,551 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:08,551 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:24:08,553 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:08,553 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:08,553 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:08,554 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 21:24:08,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:08,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:08,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:08,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:08,615 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 [2018-11-22 21:24:08,616 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-22 21:24:08,638 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. [2018-11-22 21:24:08,639 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 [2018-11-22 21:24:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:08,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-22 21:24:08,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-22 21:24:08,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 21:24:08,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-22 21:24:08,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-22 21:24:08,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-22 21:24:08,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 21:24:08,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-22 21:24:08,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-22 21:24:08,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:08,651 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:24:08,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-22 21:24:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-22 21:24:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 21:24:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-22 21:24:08,668 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:24:08,668 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:24:08,668 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 21:24:08,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-22 21:24:08,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:08,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:08,668 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-22 21:24:08,668 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:08,669 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 69#L12-2 assume !!(main_~c~0 > 0); 67#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 63#L12-2 [2018-11-22 21:24:08,669 INFO L796 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~c~0 > 0); 64#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 63#L12-2 [2018-11-22 21:24:08,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-22 21:24:08,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-22 21:24:08,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,679 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-11-22 21:24:08,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,680 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:08,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,700 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:08,700 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:08,700 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:08,700 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:08,701 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:08,701 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:08,701 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:08,701 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:08,701 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 21:24:08,701 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:08,701 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:08,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,768 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:08,768 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,773 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:08,774 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:08,796 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:08,796 INFO L448 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 /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,798 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:08,799 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:08,813 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:08,813 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,815 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:08,815 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:08,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:08,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:08,846 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:08,847 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:08,847 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:08,847 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:08,847 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:08,847 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:08,847 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:08,847 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:08,848 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:08,848 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 21:24:08,848 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:08,848 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:08,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:08,888 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:08,888 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:08,888 INFO L122 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 [2018-11-22 21:24:08,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:08,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:08,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:08,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:08,891 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:08,891 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:08,896 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:08,896 INFO L122 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 [2018-11-22 21:24:08,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:08,897 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:08,897 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:08,897 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:08,899 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:08,899 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:08,907 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:08,907 INFO L122 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 [2018-11-22 21:24:08,908 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:08,908 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:08,908 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:08,908 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:08,908 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:08,909 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:08,909 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:08,912 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:08,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:08,919 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:24:08,919 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:08,919 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:08,919 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:08,919 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 21:24:08,920 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:08,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:08,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:08,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:08,955 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 [2018-11-22 21:24:08,955 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-22 21:24:08,962 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. [2018-11-22 21:24:08,962 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 [2018-11-22 21:24:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-22 21:24:08,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 21:24:08,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 21:24:08,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-22 21:24:08,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:08,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-22 21:24:08,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-22 21:24:08,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-22 21:24:08,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-22 21:24:08,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-22 21:24:08,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:08,969 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-22 21:24:08,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-22 21:24:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-22 21:24:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-22 21:24:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-22 21:24:08,970 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-22 21:24:08,970 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-22 21:24:08,970 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 21:24:08,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2018-11-22 21:24:08,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 21:24:08,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:08,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:08,971 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2018-11-22 21:24:08,971 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:08,971 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 122#L12-2 assume !!(main_~c~0 > 0); 120#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 123#L12-2 assume !!(main_~c~0 > 0); 124#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 116#L12-2 [2018-11-22 21:24:08,971 INFO L796 eck$LassoCheckResult]: Loop: 116#L12-2 assume !!(main_~c~0 > 0); 117#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 116#L12-2 [2018-11-22 21:24:08,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,972 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2018-11-22 21:24:08,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:08,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-22 21:24:08,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,979 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:08,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2018-11-22 21:24:08,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:08,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:08,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,983 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:08,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,005 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,005 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,005 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,005 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,006 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:09,006 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,006 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,006 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,006 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 21:24:09,006 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,006 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,059 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,059 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,074 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,074 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,091 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:09,091 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,125 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:09,126 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,126 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,126 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,126 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,127 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:09,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,127 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 21:24:09,127 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,127 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,173 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,174 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:09,174 INFO L122 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 [2018-11-22 21:24:09,174 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,175 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:09,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,175 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,175 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,177 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:09,177 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:09,180 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:09,182 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:09,183 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:24:09,183 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:09,183 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:09,183 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:09,183 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2018-11-22 21:24:09,184 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:09,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,217 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 21:24:09,217 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 21:24:09,225 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-22 21:24:09,226 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 [2018-11-22 21:24:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-22 21:24:09,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 21:24:09,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,227 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:09,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 21:24:09,254 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 21:24:09,260 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-22 21:24:09,260 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 [2018-11-22 21:24:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-22 21:24:09,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 21:24:09,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,261 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:09,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,290 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 2 loop predicates [2018-11-22 21:24:09,290 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 21:24:09,297 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2018-11-22 21:24:09,297 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 [2018-11-22 21:24:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-22 21:24:09,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 21:24:09,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 21:24:09,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 21:24:09,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2018-11-22 21:24:09,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:24:09,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2018-11-22 21:24:09,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-22 21:24:09,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-22 21:24:09,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-22 21:24:09,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:09,300 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-22 21:24:09,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-22 21:24:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2018-11-22 21:24:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:24:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-22 21:24:09,300 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-22 21:24:09,300 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-22 21:24:09,300 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 21:24:09,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-22 21:24:09,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:24:09,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:09,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:09,301 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:24:09,301 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:09,301 INFO L794 eck$LassoCheckResult]: Stem: 267#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 263#L12-2 [2018-11-22 21:24:09,301 INFO L796 eck$LassoCheckResult]: Loop: 263#L12-2 assume !!(main_~c~0 > 0); 265#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 263#L12-2 [2018-11-22 21:24:09,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,301 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-22 21:24:09,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,302 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2018-11-22 21:24:09,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,305 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,308 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2018-11-22 21:24:09,309 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:09,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,324 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,325 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,325 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,325 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,325 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:09,325 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,325 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,325 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,325 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 21:24:09,325 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,326 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,374 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,375 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,380 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:09,396 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,411 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:09,412 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,412 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,412 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,412 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,412 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:09,412 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,412 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,412 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,412 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 21:24:09,412 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,412 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,447 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,447 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:09,448 INFO L122 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 [2018-11-22 21:24:09,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,448 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:09,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,449 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,449 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:09,449 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:09,452 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:09,454 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:09,454 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 21:24:09,455 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:09,455 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:09,455 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:09,455 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2018-11-22 21:24:09,456 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:09,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,470 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 [2018-11-22 21:24:09,470 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 21:24:09,475 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 5 states. [2018-11-22 21:24:09,475 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 [2018-11-22 21:24:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2018-11-22 21:24:09,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-22 21:24:09,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 21:24:09,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-22 21:24:09,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2018-11-22 21:24:09,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:24:09,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2018-11-22 21:24:09,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 21:24:09,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 21:24:09,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-22 21:24:09,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:09,478 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-22 21:24:09,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-22 21:24:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-11-22 21:24:09,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-22 21:24:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-11-22 21:24:09,479 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-22 21:24:09,479 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-22 21:24:09,479 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 21:24:09,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2018-11-22 21:24:09,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:24:09,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:09,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:09,480 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-22 21:24:09,480 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 21:24:09,480 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 308#L12-2 assume !!(main_~c~0 > 0); 309#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 315#L12-2 assume !!(main_~c~0 > 0); 313#L12 [2018-11-22 21:24:09,480 INFO L796 eck$LassoCheckResult]: Loop: 313#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 314#L12-2 assume !!(main_~c~0 > 0); 313#L12 [2018-11-22 21:24:09,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,481 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-22 21:24:09,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,482 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:24:09,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:24:09,514 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-22 21:24:09,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-22 21:24:09,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,515 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,528 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,528 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,528 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,528 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,528 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:09,528 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,528 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,528 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,529 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-22 21:24:09,529 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,529 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,561 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,561 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,563 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,563 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,577 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:09,577 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,579 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,579 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,593 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:09,593 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:09,596 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,596 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,611 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:09,611 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,637 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:09,638 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}] Lambdas: [3, 12, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,652 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,667 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:09,668 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:09,685 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:09,686 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,686 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,686 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,687 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,687 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:09,687 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,687 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,687 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,687 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-22 21:24:09,687 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,687 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,723 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,723 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:09,724 INFO L122 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 [2018-11-22 21:24:09,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,726 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:09,726 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:09,728 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:09,728 INFO L122 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 [2018-11-22 21:24:09,728 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,729 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:09,729 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,729 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:09,730 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:09,732 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:09,732 INFO L122 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 [2018-11-22 21:24:09,732 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,732 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,732 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,732 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,733 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:09,733 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:09,735 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:09,736 INFO L122 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 [2018-11-22 21:24:09,736 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:09,736 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:09,736 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:09,736 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:09,736 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:09,736 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:09,737 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:09,739 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:09,741 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:09,741 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 21:24:09,741 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:09,742 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:09,742 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:09,742 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2018-11-22 21:24:09,742 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:09,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,780 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 21:24:09,780 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-22 21:24:09,785 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2018-11-22 21:24:09,785 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 [2018-11-22 21:24:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 21:24:09,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 21:24:09,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,786 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:09,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,828 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 21:24:09,828 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-22 21:24:09,840 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-11-22 21:24:09,840 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 [2018-11-22 21:24:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-22 21:24:09,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 21:24:09,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,841 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:09,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:09,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:09,875 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 2 loop predicates [2018-11-22 21:24:09,875 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-22 21:24:09,880 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 16 states and 20 transitions. Complement of second has 4 states. [2018-11-22 21:24:09,881 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 [2018-11-22 21:24:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 21:24:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-22 21:24:09,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 21:24:09,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-22 21:24:09,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-22 21:24:09,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:09,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2018-11-22 21:24:09,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-22 21:24:09,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2018-11-22 21:24:09,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 21:24:09,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-22 21:24:09,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-11-22 21:24:09,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:09,883 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-22 21:24:09,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-11-22 21:24:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2018-11-22 21:24:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 21:24:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-22 21:24:09,884 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:24:09,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:24:09,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:24:09,887 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 4 states. [2018-11-22 21:24:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:24:09,910 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2018-11-22 21:24:09,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:24:09,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-11-22 21:24:09,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-22 21:24:09,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2018-11-22 21:24:09,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 21:24:09,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-22 21:24:09,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-22 21:24:09,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:09,912 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-22 21:24:09,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-22 21:24:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 21:24:09,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 21:24:09,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-22 21:24:09,912 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 21:24:09,913 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 21:24:09,913 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-22 21:24:09,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-22 21:24:09,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-22 21:24:09,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:09,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:09,914 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2018-11-22 21:24:09,914 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-11-22 21:24:09,914 INFO L794 eck$LassoCheckResult]: Stem: 462#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 460#L12-2 assume !!(main_~c~0 > 0); 461#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 464#L12-2 assume !!(main_~c~0 > 0); 463#L12 [2018-11-22 21:24:09,914 INFO L796 eck$LassoCheckResult]: Loop: 463#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 460#L12-2 assume !!(main_~c~0 > 0); 461#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 464#L12-2 assume !!(main_~c~0 > 0); 463#L12 [2018-11-22 21:24:09,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,914 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2018-11-22 21:24:09,914 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,915 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2018-11-22 21:24:09,921 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,922 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:09,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2018-11-22 21:24:09,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:09,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:09,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:09,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:09,954 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:09,955 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:09,955 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:09,955 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:09,955 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:09,955 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,955 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:09,955 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:09,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-22 21:24:09,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:09,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:09,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:09,992 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:09,993 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:09,994 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:09,994 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,009 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:10,009 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/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 [2018-11-22 21:24:10,012 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,029 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:10,029 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,046 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:10,046 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=1} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,050 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,050 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,066 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:10,066 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,069 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:10,082 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:10,082 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:10,082 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:10,082 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:10,082 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:10,082 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,082 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:10,082 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:10,082 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-22 21:24:10,082 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:10,082 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:10,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,124 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:10,124 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:10,124 INFO L122 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 [2018-11-22 21:24:10,125 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,125 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,125 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,125 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,126 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:10,126 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:10,129 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:10,129 INFO L122 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 [2018-11-22 21:24:10,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,129 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:10,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,130 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,130 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,130 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:10,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:10,132 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:10,132 INFO L122 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 [2018-11-22 21:24:10,132 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,132 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:10,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,133 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:10,133 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:10,135 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:10,137 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:10,137 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 21:24:10,137 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:10,137 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:10,137 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:10,137 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 201 Supporting invariants [] [2018-11-22 21:24:10,138 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:10,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,180 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:10,180 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-22 21:24:10,186 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2018-11-22 21:24:10,186 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 [2018-11-22 21:24:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:24:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 21:24:10,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 21:24:10,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,187 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:10,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,227 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:10,227 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-22 21:24:10,239 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2018-11-22 21:24:10,240 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 [2018-11-22 21:24:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:24:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-22 21:24:10,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 21:24:10,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,240 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:10,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,269 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 3 loop predicates [2018-11-22 21:24:10,269 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-22 21:24:10,273 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 16 states and 19 transitions. Complement of second has 4 states. [2018-11-22 21:24:10,273 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 [2018-11-22 21:24:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:24:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-22 21:24:10,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 21:24:10,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,274 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:10,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,303 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:10,303 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-22 21:24:10,313 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2018-11-22 21:24:10,314 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 [2018-11-22 21:24:10,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:24:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-22 21:24:10,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 21:24:10,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,314 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:10,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,342 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:10,342 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-22 21:24:10,389 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. Result 72 states and 96 transitions. Complement of second has 37 states 8 powerset states29 rank states. The highest rank that occured is 5 [2018-11-22 21:24:10,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-22 21:24:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:24:10,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2018-11-22 21:24:10,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 21:24:10,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-22 21:24:10,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-22 21:24:10,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 96 transitions. [2018-11-22 21:24:10,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2018-11-22 21:24:10,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 27 states and 38 transitions. [2018-11-22 21:24:10,395 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2018-11-22 21:24:10,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2018-11-22 21:24:10,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2018-11-22 21:24:10,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:10,396 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2018-11-22 21:24:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2018-11-22 21:24:10,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2018-11-22 21:24:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-22 21:24:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-11-22 21:24:10,398 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2018-11-22 21:24:10,398 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2018-11-22 21:24:10,398 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-22 21:24:10,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2018-11-22 21:24:10,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-22 21:24:10,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:10,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:10,399 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2018-11-22 21:24:10,399 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2018-11-22 21:24:10,399 INFO L794 eck$LassoCheckResult]: Stem: 824#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 825#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 827#L12-2 assume !!(main_~c~0 > 0); 832#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 831#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 826#L12 [2018-11-22 21:24:10,400 INFO L796 eck$LassoCheckResult]: Loop: 826#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 827#L12-2 assume !!(main_~c~0 > 0); 832#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 831#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 826#L12 [2018-11-22 21:24:10,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,400 INFO L82 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 5 times [2018-11-22 21:24:10,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:10,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:10,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:10,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:24:10,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:24:10,438 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:24:10,453 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-22 21:24:10,458 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-11-22 21:24:10,458 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 21:24:10,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:24:10,475 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 21:24:10,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-22 21:24:10,476 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-22 21:24:10,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2018-11-22 21:24:10,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:10,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:10,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,477 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:10,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,515 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:10,515 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:10,515 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:10,515 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:10,515 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:10,515 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,515 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:10,516 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:10,516 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration7_Loop [2018-11-22 21:24:10,516 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:10,516 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:10,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,558 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:10,558 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,560 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,560 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,577 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:10,577 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,580 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:10,594 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:10,594 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:10,594 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:10,594 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:10,594 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:10,594 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,594 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:10,594 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:10,594 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration7_Loop [2018-11-22 21:24:10,594 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:10,594 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:10,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,664 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:10,664 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:10,664 INFO L122 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 [2018-11-22 21:24:10,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,665 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:10,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,665 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:10,665 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:10,671 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:10,672 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:10,672 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:24:10,672 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:10,672 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:10,672 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:10,673 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 21:24:10,673 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:10,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:24:10,717 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-11-22 21:24:10,717 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-11-22 21:24:10,738 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 65 states and 87 transitions. Complement of second has 9 states. [2018-11-22 21:24:10,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-22 21:24:10,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:24:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2018-11-22 21:24:10,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-22 21:24:10,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-22 21:24:10,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 12 letters. [2018-11-22 21:24:10,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:10,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 87 transitions. [2018-11-22 21:24:10,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-22 21:24:10,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 54 states and 75 transitions. [2018-11-22 21:24:10,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-22 21:24:10,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 21:24:10,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 75 transitions. [2018-11-22 21:24:10,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:10,741 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 75 transitions. [2018-11-22 21:24:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 75 transitions. [2018-11-22 21:24:10,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2018-11-22 21:24:10,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-22 21:24:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2018-11-22 21:24:10,743 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 66 transitions. [2018-11-22 21:24:10,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:24:10,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:24:10,743 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand 5 states. [2018-11-22 21:24:10,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:24:10,751 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-11-22 21:24:10,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 21:24:10,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 60 transitions. [2018-11-22 21:24:10,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-22 21:24:10,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 33 states and 44 transitions. [2018-11-22 21:24:10,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2018-11-22 21:24:10,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2018-11-22 21:24:10,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2018-11-22 21:24:10,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:10,753 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-22 21:24:10,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2018-11-22 21:24:10,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 21. [2018-11-22 21:24:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-22 21:24:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2018-11-22 21:24:10,756 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2018-11-22 21:24:10,756 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2018-11-22 21:24:10,756 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-22 21:24:10,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2018-11-22 21:24:10,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-22 21:24:10,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:10,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:10,757 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 2, 1] [2018-11-22 21:24:10,757 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2018-11-22 21:24:10,757 INFO L794 eck$LassoCheckResult]: Stem: 1092#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1093#L12-2 assume !!(main_~c~0 > 0); 1110#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1107#L12-2 assume !!(main_~c~0 > 0); 1100#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1095#L12-2 assume !!(main_~c~0 > 0); 1101#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1099#L12-2 assume !!(main_~c~0 > 0); 1098#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1097#L12-2 assume !!(main_~c~0 > 0); 1094#L12 [2018-11-22 21:24:10,757 INFO L796 eck$LassoCheckResult]: Loop: 1094#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1095#L12-2 assume !!(main_~c~0 > 0); 1101#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1099#L12-2 assume !!(main_~c~0 > 0); 1098#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1097#L12-2 assume !!(main_~c~0 > 0); 1094#L12 [2018-11-22 21:24:10,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1791617062, now seen corresponding path program 6 times [2018-11-22 21:24:10,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:10,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:10,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,758 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:10,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 3 times [2018-11-22 21:24:10,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:10,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:10,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,765 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:10,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:10,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:10,769 INFO L82 PathProgramCache]: Analyzing trace with hash 709032111, now seen corresponding path program 7 times [2018-11-22 21:24:10,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:10,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:10,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,769 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:10,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:24:10,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:24:10,790 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:24:10,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:10,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 21:24:10,818 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 21:24:10,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-22 21:24:10,843 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:10,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:10,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:10,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:10,843 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:24:10,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,843 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:10,843 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:10,844 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration8_Loop [2018-11-22 21:24:10,844 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:10,844 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:10,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,876 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:10,876 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,877 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,877 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,891 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:24:10,891 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:24:10,895 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e4840694-dd21-4390-8d56-8f7acf5d71ae/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,915 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:24:10,915 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:24:10,952 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:24:10,954 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:24:10,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:24:10,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:24:10,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:24:10,954 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:24:10,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:24:10,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:24:10,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:24:10,954 INFO L131 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative_true-termination_true-no-overflow.c_Iteration8_Loop [2018-11-22 21:24:10,954 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:24:10,954 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:24:10,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:24:10,990 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:24:10,991 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:24:10,991 INFO L122 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 [2018-11-22 21:24:10,991 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,991 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,991 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,992 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,992 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:24:10,992 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:24:10,993 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:24:10,994 INFO L122 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 [2018-11-22 21:24:10,994 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:24:10,994 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:24:10,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:24:10,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:24:10,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:24:10,994 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:24:10,994 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:24:10,995 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:24:10,996 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:24:10,996 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:24:10,996 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:24:10,996 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:24:10,996 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:24:10,996 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2018-11-22 21:24:10,996 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:24:11,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:24:11,034 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:11,034 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand 5 states. [2018-11-22 21:24:11,047 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 37 states and 48 transitions. Complement of second has 7 states. [2018-11-22 21:24:11,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-22 21:24:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:24:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-22 21:24:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 6 letters. [2018-11-22 21:24:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:11,048 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:11,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:24:11,084 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:24:11,085 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand 5 states. [2018-11-22 21:24:11,104 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 37 states and 48 transitions. Complement of second has 7 states. [2018-11-22 21:24:11,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-22 21:24:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:24:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-22 21:24:11,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 6 letters. [2018-11-22 21:24:11,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:11,106 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:24:11,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:24:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:24:11,152 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 3 loop predicates [2018-11-22 21:24:11,152 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand 5 states. [2018-11-22 21:24:11,176 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 71 states and 99 transitions. Complement of second has 13 states. [2018-11-22 21:24:11,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-22 21:24:11,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:24:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-22 21:24:11,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2018-11-22 21:24:11,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:11,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 16 letters. Loop has 6 letters. [2018-11-22 21:24:11,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:11,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 12 letters. [2018-11-22 21:24:11,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:24:11,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 99 transitions. [2018-11-22 21:24:11,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2018-11-22 21:24:11,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 50 states and 71 transitions. [2018-11-22 21:24:11,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2018-11-22 21:24:11,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2018-11-22 21:24:11,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 71 transitions. [2018-11-22 21:24:11,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:11,180 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 71 transitions. [2018-11-22 21:24:11,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 71 transitions. [2018-11-22 21:24:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 32. [2018-11-22 21:24:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-22 21:24:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2018-11-22 21:24:11,183 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2018-11-22 21:24:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 21:24:11,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:24:11,183 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand 7 states. [2018-11-22 21:24:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:24:11,199 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2018-11-22 21:24:11,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:24:11,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 84 transitions. [2018-11-22 21:24:11,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2018-11-22 21:24:11,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 60 states and 77 transitions. [2018-11-22 21:24:11,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2018-11-22 21:24:11,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 21:24:11,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 77 transitions. [2018-11-22 21:24:11,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:24:11,201 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 77 transitions. [2018-11-22 21:24:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 77 transitions. [2018-11-22 21:24:11,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 43. [2018-11-22 21:24:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-22 21:24:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2018-11-22 21:24:11,203 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 56 transitions. [2018-11-22 21:24:11,203 INFO L608 BuchiCegarLoop]: Abstraction has 43 states and 56 transitions. [2018-11-22 21:24:11,203 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-22 21:24:11,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 56 transitions. [2018-11-22 21:24:11,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2018-11-22 21:24:11,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:24:11,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:24:11,204 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2018-11-22 21:24:11,205 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2] [2018-11-22 21:24:11,205 INFO L794 eck$LassoCheckResult]: Stem: 1604#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1606#L12-2 assume !!(main_~c~0 > 0); 1617#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1607#L12-2 assume !!(main_~c~0 > 0); 1618#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1614#L12-2 assume !!(main_~c~0 > 0); 1613#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1611#L12-2 assume !!(main_~c~0 > 0); 1610#L12 [2018-11-22 21:24:11,205 INFO L796 eck$LassoCheckResult]: Loop: 1610#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1600#L12-2 assume !!(main_~c~0 > 0); 1601#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1607#L12-2 assume !!(main_~c~0 > 0); 1618#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1614#L12-2 assume !!(main_~c~0 > 0); 1613#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1611#L12-2 assume !!(main_~c~0 > 0); 1610#L12 [2018-11-22 21:24:11,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:11,205 INFO L82 PathProgramCache]: Analyzing trace with hash 659587453, now seen corresponding path program 8 times [2018-11-22 21:24:11,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:11,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:11,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:11,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:24:11,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:24:11,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:24:11,211 INFO L82 PathProgramCache]: Analyzing trace with hash 98474993, now seen corresponding path program 4 times [2018-11-22 21:24:11,211 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:24:11,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:24:11,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:11,212 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:24:11,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:24:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:24:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:24:11,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:24:11,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:24:11,222 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-22 21:24:11,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:24:11,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:24:11,222 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-22 21:24:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:24:11,229 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2018-11-22 21:24:11,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:24:11,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 70 transitions. [2018-11-22 21:24:11,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 21:24:11,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 21:24:11,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 21:24:11,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 21:24:11,231 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-22 21:24:11,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:24:11,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 21:24:11,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 21:24:11,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 09:24:11 BoogieIcfgContainer [2018-11-22 21:24:11,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 21:24:11,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:24:11,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:24:11,237 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:24:11,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:24:08" (3/4) ... [2018-11-22 21:24:11,239 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 21:24:11,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:24:11,240 INFO L168 Benchmark]: Toolchain (without parser) took 3536.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.9 MB). Free memory was 953.8 MB in the beginning and 902.4 MB in the end (delta: 51.3 MB). Peak memory consumption was 275.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:24:11,241 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:24:11,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:24:11,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.28 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:24:11,242 INFO L168 Benchmark]: Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:24:11,242 INFO L168 Benchmark]: RCFGBuilder took 142.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:24:11,243 INFO L168 Benchmark]: BuchiAutomizer took 3204.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 902.4 MB in the end (delta: 236.8 MB). Peak memory consumption was 305.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:24:11,243 INFO L168 Benchmark]: Witness Printer took 2.93 ms. Allocated memory is still 1.3 GB. Free memory is still 902.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:24:11,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.28 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 142.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3204.76 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 902.4 MB in the end (delta: 236.8 MB). Peak memory consumption was 305.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.93 ms. Allocated memory is still 1.3 GB. Free memory is still 902.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (4 trivial, 4 deterministic, 4 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function -2 * x + 211 and consists of 3 locations. One deterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 211 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 201 and consists of 5 locations. One nondeterministic module has affine ranking function c and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 10 iterations. TraceHistogramMax:5. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 5. Minimization of det autom 1. Minimization of nondet autom 11. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 82 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 8. Nontrivial modules had stage [4, 0, 3, 0, 1]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/14 HoareTripleCheckerStatistics: 85 SDtfs, 71 SDslu, 30 SDs, 0 SdLazy, 164 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax161 hnf98 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...