./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 535f92a2734d803c22d5e10e2200913cae078252 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:24:33,170 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:24:33,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:24:33,179 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:24:33,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:24:33,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:24:33,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:24:33,182 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:24:33,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:24:33,184 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:24:33,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:24:33,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:24:33,185 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:24:33,186 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:24:33,187 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:24:33,187 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:24:33,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:24:33,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:24:33,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:24:33,191 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:24:33,192 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:24:33,193 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:24:33,195 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:24:33,195 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:24:33,195 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:24:33,196 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:24:33,196 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:24:33,197 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:24:33,197 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:24:33,198 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:24:33,198 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:24:33,199 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:24:33,199 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:24:33,199 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:24:33,200 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:24:33,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:24:33,201 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 11:24:33,211 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:24:33,211 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:24:33,212 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:24:33,212 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:24:33,212 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:24:33,213 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:24:33,213 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:24:33,213 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:24:33,213 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:24:33,213 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:24:33,213 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:24:33,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:24:33,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:24:33,215 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:24:33,215 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:24:33,215 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:24:33,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:24:33,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:24:33,215 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:24:33,216 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:24:33,216 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:24:33,216 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:24:33,216 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:24:33,217 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_51d1cdc0-1738-496a-8800-6066d08c6d94/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 -> 535f92a2734d803c22d5e10e2200913cae078252 [2018-11-18 11:24:33,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:24:33,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:24:33,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:24:33,248 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:24:33,248 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:24:33,248 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/java_Sequence_true-termination_true-no-overflow.c [2018-11-18 11:24:33,283 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/data/1831513d1/1acf42ae5dc04d6780c44f2f08885eac/FLAG73b8b8334 [2018-11-18 11:24:33,669 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:24:33,669 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/sv-benchmarks/c/termination-restricted-15/java_Sequence_true-termination_true-no-overflow.c [2018-11-18 11:24:33,672 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/data/1831513d1/1acf42ae5dc04d6780c44f2f08885eac/FLAG73b8b8334 [2018-11-18 11:24:33,680 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/bin-2019/uautomizer/data/1831513d1/1acf42ae5dc04d6780c44f2f08885eac [2018-11-18 11:24:33,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:24:33,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:24:33,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:24:33,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:24:33,687 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:24:33,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22909f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33, skipping insertion in model container [2018-11-18 11:24:33,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:24:33,705 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:24:33,804 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:24:33,807 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:24:33,815 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:24:33,822 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:24:33,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33 WrapperNode [2018-11-18 11:24:33,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:24:33,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:24:33,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:24:33,823 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:24:33,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:24:33,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:24:33,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:24:33,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:24:33,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... [2018-11-18 11:24:33,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:24:33,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:24:33,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:24:33,861 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:24:33,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:24:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:24:34,021 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:24:34,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:24:34 BoogieIcfgContainer [2018-11-18 11:24:34,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:24:34,022 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:24:34,022 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:24:34,025 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:24:34,025 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:24:34,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:24:33" (1/3) ... [2018-11-18 11:24:34,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@573efb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:24:34, skipping insertion in model container [2018-11-18 11:24:34,026 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:24:34,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:24:33" (2/3) ... [2018-11-18 11:24:34,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@573efb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:24:34, skipping insertion in model container [2018-11-18 11:24:34,027 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:24:34,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:24:34" (3/3) ... [2018-11-18 11:24:34,028 INFO L375 chiAutomizerObserver]: Analyzing ICFG java_Sequence_true-termination_true-no-overflow.c [2018-11-18 11:24:34,075 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:24:34,076 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:24:34,076 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:24:34,076 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:24:34,076 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:24:34,076 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:24:34,076 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:24:34,076 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:24:34,077 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:24:34,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 11:24:34,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 11:24:34,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:24:34,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:24:34,108 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:24:34,108 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 11:24:34,109 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:24:34,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 11:24:34,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 11:24:34,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:24:34,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:24:34,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:24:34,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 11:24:34,117 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 8#L10-3true [2018-11-18 11:24:34,117 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-3true assume true; 13#L10-1true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 8#L10-3true [2018-11-18 11:24:34,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,122 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 11:24:34,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:24:34,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:24:34,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:34,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1159, now seen corresponding path program 1 times [2018-11-18 11:24:34,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:24:34,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:24:34,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:34,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,201 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-18 11:24:34,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:24:34,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:24:34,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:34,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,259 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:24:34,260 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:24:34,260 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:24:34,260 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:24:34,260 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:24:34,260 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:24:34,260 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:24:34,260 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:24:34,260 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Sequence_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 11:24:34,261 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:24:34,261 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:24:34,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,368 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:24:34,369 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,373 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,373 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,407 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,407 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,410 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,410 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,425 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,425 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,428 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,428 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:24:34,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,464 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,464 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=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,479 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,504 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:24:34,504 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,531 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:24:34,532 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:24:34,532 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:24:34,532 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:24:34,532 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:24:34,532 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:24:34,532 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:24:34,532 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:24:34,532 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:24:34,533 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Sequence_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 11:24:34,533 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:24:34,533 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:24:34,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,602 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:24:34,605 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:24:34,606 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 [2018-11-18 11:24:34,607 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:34,607 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:34,607 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:34,607 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:34,610 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:24:34,611 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:24:34,616 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:34,616 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 [2018-11-18 11:24:34,617 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:34,617 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:34,617 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:34,617 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:34,619 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:24:34,619 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:24:34,625 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:34,625 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 [2018-11-18 11:24:34,626 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:34,626 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:24:34,627 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:34,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:34,627 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:34,627 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:24:34,627 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:24:34,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:34,631 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 [2018-11-18 11:24:34,631 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:34,632 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:24:34,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:34,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:34,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:34,632 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:24:34,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:24:34,637 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:24:34,642 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:24:34,642 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 11:24:34,643 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:24:34,643 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:24:34,643 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:24:34,644 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2018-11-18 11:24:34,645 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:24:34,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:34,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:34,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:24:34,689 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 [2018-11-18 11:24:34,690 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2018-11-18 11:24:34,718 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 27 states and 34 transitions. Complement of second has 5 states. [2018-11-18 11:24:34,718 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 [2018-11-18 11:24:34,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:24:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2018-11-18 11:24:34,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-18 11:24:34,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:34,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 11:24:34,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:34,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-18 11:24:34,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:34,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-11-18 11:24:34,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:24:34,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 9 states and 11 transitions. [2018-11-18 11:24:34,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-18 11:24:34,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 11:24:34,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2018-11-18 11:24:34,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:24:34,727 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 11:24:34,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2018-11-18 11:24:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-18 11:24:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 11:24:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-18 11:24:34,743 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 11:24:34,744 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-18 11:24:34,744 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:24:34,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-18 11:24:34,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:24:34,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:24:34,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:24:34,745 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 11:24:34,745 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 11:24:34,745 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 74#L10-3 assume true; 80#L10-1 assume !(main_~i~0 < 100); 76#L10-4 main_~j~0 := 5; 77#L15-3 [2018-11-18 11:24:34,745 INFO L796 eck$LassoCheckResult]: Loop: 77#L15-3 assume true; 78#L15-1 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 77#L15-3 [2018-11-18 11:24:34,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,745 INFO L82 PathProgramCache]: Analyzing trace with hash 28694825, now seen corresponding path program 1 times [2018-11-18 11:24:34,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:24:34,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:24:34,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:34,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:24:34,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:24:34,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:24:34,767 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 11:24:34,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:34,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1607, now seen corresponding path program 1 times [2018-11-18 11:24:34,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:24:34,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:24:34,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:24:34,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:24:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:24:34,786 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:24:34,786 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:24:34,786 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:24:34,786 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:24:34,786 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:24:34,786 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:24:34,786 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:24:34,786 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:24:34,786 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Sequence_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:24:34,786 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:24:34,786 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:24:34,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,837 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:24:34,837 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,845 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,845 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,865 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,865 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_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,867 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,882 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,883 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_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,885 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:24:34,901 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,919 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:24:34,919 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=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,934 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:24:34,934 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51d1cdc0-1738-496a-8800-6066d08c6d94/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 [2018-11-18 11:24:34,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:24:34,950 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:24:34,967 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:24:34,967 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:24:34,967 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:24:34,968 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:24:34,968 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:24:34,968 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:24:34,968 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:24:34,968 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:24:34,968 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:24:34,968 INFO L131 ssoRankerPreferences]: Filename of dumped script: java_Sequence_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:24:34,968 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:24:34,968 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:24:34,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:34,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:24:35,028 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:24:35,029 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:24:35,029 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 [2018-11-18 11:24:35,030 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:35,030 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:35,030 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:35,030 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:35,031 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:24:35,032 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:24:35,035 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:35,035 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 [2018-11-18 11:24:35,036 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:35,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:35,038 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:35,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:35,039 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:24:35,040 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:24:35,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:35,044 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 [2018-11-18 11:24:35,045 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:35,046 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:24:35,046 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:35,047 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:35,047 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:35,047 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:24:35,047 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:24:35,050 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:24:35,050 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 [2018-11-18 11:24:35,051 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:24:35,051 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:24:35,051 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:24:35,051 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:24:35,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:24:35,052 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:24:35,052 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:24:35,058 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:24:35,061 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:24:35,061 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 11:24:35,061 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:24:35,061 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:24:35,061 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:24:35,061 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2018-11-18 11:24:35,062 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:24:35,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:24:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:35,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:24:35,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:24:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:24:35,090 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 [2018-11-18 11:24:35,091 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-18 11:24:35,096 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2018-11-18 11:24:35,097 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 [2018-11-18 11:24:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:24:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-18 11:24:35,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-18 11:24:35,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:35,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-18 11:24:35,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:35,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-18 11:24:35,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:24:35,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-11-18 11:24:35,100 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:24:35,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-18 11:24:35,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:24:35,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:24:35,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:24:35,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:24:35,100 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:35,100 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:35,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:24:35,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:24:35,103 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2018-11-18 11:24:35,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:24:35,106 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 11:24:35,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:24:35,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 11:24:35,106 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:24:35,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:24:35,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:24:35,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:24:35,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:24:35,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:24:35,107 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:35,107 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:35,107 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:24:35,107 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:24:35,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:24:35,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:24:35,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 11:24:35,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:24:35 BoogieIcfgContainer [2018-11-18 11:24:35,112 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:24:35,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:24:35,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:24:35,112 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:24:35,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:24:34" (3/4) ... [2018-11-18 11:24:35,115 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:24:35,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:24:35,116 INFO L168 Benchmark]: Toolchain (without parser) took 1432.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 959.1 MB in the beginning and 941.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 141.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:35,117 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:24:35,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:35,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:35,119 INFO L168 Benchmark]: Boogie Preprocessor took 11.95 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:24:35,119 INFO L168 Benchmark]: RCFGBuilder took 160.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:35,120 INFO L168 Benchmark]: BuchiAutomizer took 1090.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.6 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:24:35,120 INFO L168 Benchmark]: Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:24:35,123 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.95 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 160.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1090.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.6 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 941.6 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 16 SDslu, 9 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...