./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 0.1.24-678e011 [2019-11-19 23:55:21,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:55:21,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:55:21,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:55:21,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:55:21,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:55:21,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:55:21,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:55:21,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:55:21,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:55:21,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:55:21,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:55:21,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:55:21,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:55:21,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:55:21,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:55:21,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:55:21,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:55:21,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:55:21,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:55:21,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:55:21,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:55:21,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:55:21,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:55:21,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:55:21,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:55:21,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:55:21,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:55:21,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:55:21,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:55:21,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:55:21,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:55:21,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:55:21,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:55:21,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:55:21,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:55:21,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:55:21,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:55:21,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:55:21,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:55:21,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:55:21,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 23:55:21,243 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:55:21,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:55:21,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:55:21,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:55:21,245 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:55:21,245 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:55:21,245 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:55:21,246 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:55:21,246 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:55:21,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:55:21,246 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:55:21,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:55:21,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:55:21,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:55:21,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:55:21,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:55:21,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:55:21,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:55:21,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:55:21,248 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:55:21,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:55:21,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:55:21,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:55:21,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:55:21,250 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:55:21,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:55:21,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:55:21,250 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:55:21,251 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:55:21,251 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:21,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:55:21,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:55:21,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:55:21,406 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:55:21,406 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:55:21,407 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2019-11-19 23:55:21,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/data/18c56aa68/517b24f9e1774d60b8b02c9389e01f87/FLAG6ce15ffd8 [2019-11-19 23:55:21,874 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:55:21,875 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2019-11-19 23:55:21,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/data/18c56aa68/517b24f9e1774d60b8b02c9389e01f87/FLAG6ce15ffd8 [2019-11-19 23:55:21,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/data/18c56aa68/517b24f9e1774d60b8b02c9389e01f87 [2019-11-19 23:55:21,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:55:21,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:55:21,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:55:21,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:55:21,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:55:21,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:55:21" (1/1) ... [2019-11-19 23:55:21,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:21, skipping insertion in model container [2019-11-19 23:55:21,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:55:21" (1/1) ... [2019-11-19 23:55:21,919 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:55:21,939 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:55:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:55:22,113 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:55:22,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:55:22,193 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:55:22,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22 WrapperNode [2019-11-19 23:55:22,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:55:22,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:55:22,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:55:22,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:55:22,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:55:22,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:55:22,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:55:22,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:55:22,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... [2019-11-19 23:55:22,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:55:22,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:55:22,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:55:22,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:55:22,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:55:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:55:22,448 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:55:22,448 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:55:22,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:22 BoogieIcfgContainer [2019-11-19 23:55:22,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:55:22,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:55:22,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:55:22,454 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:55:22,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:22,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:55:21" (1/3) ... [2019-11-19 23:55:22,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c296937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:55:22, skipping insertion in model container [2019-11-19 23:55:22,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:22,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:22" (2/3) ... [2019-11-19 23:55:22,459 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c296937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:55:22, skipping insertion in model container [2019-11-19 23:55:22,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:22,459 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:22" (3/3) ... [2019-11-19 23:55:22,461 INFO L371 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2019-11-19 23:55:22,512 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:55:22,513 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:55:22,513 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:55:22,513 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:55:22,513 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:55:22,513 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:55:22,514 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:55:22,514 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:55:22,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 23:55:22,556 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-19 23:55:22,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:22,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:22,563 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 23:55:22,563 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:22,563 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:55:22,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 23:55:22,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-11-19 23:55:22,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:22,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:22,567 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-19 23:55:22,567 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:22,575 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 8#L10-2true [2019-11-19 23:55:22,575 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~c~0 := 1 + main_~c~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2019-11-19 23:55:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:22,582 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-19 23:55:22,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:22,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684445141] [2019-11-19 23:55:22,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,677 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-19 23:55:22,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:22,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399580780] [2019-11-19 23:55:22,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:22,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:22,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-19 23:55:22,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:22,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683658357] [2019-11-19 23:55:22,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:22,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:22,791 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:22,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:22,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:22,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:22,792 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:55:22,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:22,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:22,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:22,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2019-11-19 23:55:22,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:22,793 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:22,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:22,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:22,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:22,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:22,959 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:22,960 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:22,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:22,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:22,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:22,975 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:22,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:22,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:22,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:22,991 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:22,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:22,998 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:55:23,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:23,018 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:55:23,020 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:23,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:23,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:23,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:23,021 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:55:23,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:23,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:23,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2019-11-19 23:55:23,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:23,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:23,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,131 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:23,136 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:55:23,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:23,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:23,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:55:23,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:55:23,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:55:23,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:55:23,234 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:55:23,241 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:55:23,241 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:55:23,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:55:23,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:55:23,260 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:55:23,261 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-11-19 23:55:23,268 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:23,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:55:23,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:23,332 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:55:23,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:55:23,349 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:55:23,354 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2019-11-19 23:55:23,390 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 21 states and 29 transitions. Complement of second has 5 states. [2019-11-19 23:55:23,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 23:55:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-19 23:55:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-19 23:55:23,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-19 23:55:23,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-19 23:55:23,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-19 23:55:23,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2019-11-19 23:55:23,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:55:23,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 5 states and 7 transitions. [2019-11-19 23:55:23,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-19 23:55:23,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-19 23:55:23,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-11-19 23:55:23,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:55:23,409 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-19 23:55:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-11-19 23:55:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-19 23:55:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:55:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-19 23:55:23,434 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-19 23:55:23,434 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-19 23:55:23,434 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:55:23,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-11-19 23:55:23,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:55:23,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:23,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:23,436 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 23:55:23,436 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:23,437 INFO L794 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~c~0;havoc main_~i~0;havoc main_~j~0;havoc main_~c~0;main_~c~0 := 0;main_~i~0 := 0; 59#L10-2 assume !(main_~i~0 < 100); 60#L10-3 main_~j~0 := 5; 61#L15-2 [2019-11-19 23:55:23,437 INFO L796 eck$LassoCheckResult]: Loop: 61#L15-2 assume !!(main_~j~0 < 21);main_~c~0 := 1 + main_~c~0;main_~j~0 := 3 + main_~j~0; 61#L15-2 [2019-11-19 23:55:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2019-11-19 23:55:23,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:23,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704567462] [2019-11-19 23:55:23,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:55:23,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704567462] [2019-11-19 23:55:23,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:55:23,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:55:23,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833056929] [2019-11-19 23:55:23,480 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:55:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:23,481 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2019-11-19 23:55:23,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:23,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425771749] [2019-11-19 23:55:23,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:23,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:23,512 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:23,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:23,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:23,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:23,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:55:23,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:23,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:23,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2019-11-19 23:55:23,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:23,513 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:23,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:23,606 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:23,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:23,615 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:23,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:23,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:23,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:23,627 INFO L440 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/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:23,639 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:55:23,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:23,662 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:55:23,673 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:23,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:23,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:23,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:23,674 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:55:23,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:23,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:23,674 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2019-11-19 23:55:23,674 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:23,675 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:23,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:23,746 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:23,746 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:23,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:55:23,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:55:23,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:23,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:23,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:55:23,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:23,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:55:23,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:23,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:23,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:23,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:55:23,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:55:23,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:55:23,838 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:55:23,838 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_75859ef2-f82a-4121-85d3-69cf5962ac73/bin/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 [2019-11-19 23:55:23,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:55:23,856 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:55:23,857 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:55:23,857 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2019-11-19 23:55:23,860 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 23:55:23,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:23,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:55:23,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:23,905 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:55:23,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:55:23,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:55:23,906 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-11-19 23:55:23,912 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 6 states and 8 transitions. Complement of second has 2 states. [2019-11-19 23:55:23,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-19 23:55:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-19 23:55:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2019-11-19 23:55:23,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 23:55:23,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-19 23:55:23,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-19 23:55:23,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:23,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2019-11-19 23:55:23,917 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:55:23,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2019-11-19 23:55:23,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:55:23,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:55:23,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:55:23,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:55:23,918 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:55:23,918 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:55:23,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:55:23,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:55:23,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:55:23,923 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-11-19 23:55:23,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:55:23,926 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-11-19 23:55:23,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:55:23,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-11-19 23:55:23,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:55:23,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:55:23,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:55:23,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:55:23,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:55:23,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:55:23,927 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:55:23,927 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:55:23,927 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:55:23,930 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:55:23,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:55:23,930 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:55:23,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:55:23,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:55:23 BoogieIcfgContainer [2019-11-19 23:55:23,936 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:55:23,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:55:23,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:55:23,937 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:55:23,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:22" (3/4) ... [2019-11-19 23:55:23,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:55:23,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:55:23,943 INFO L168 Benchmark]: Toolchain (without parser) took 2040.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.8 MB in the beginning and 967.4 MB in the end (delta: -22.6 MB). Peak memory consumption was 129.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:23,945 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:55:23,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -204.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:23,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:55:23,952 INFO L168 Benchmark]: Boogie Preprocessor took 20.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:55:23,952 INFO L168 Benchmark]: RCFGBuilder took 200.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:23,953 INFO L168 Benchmark]: BuchiAutomizer took 1486.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.4 MB in the end (delta: 162.5 MB). Peak memory consumption was 162.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:23,953 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 1.2 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:55:23,961 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -204.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 200.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1486.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.4 MB in the end (delta: 162.5 MB). Peak memory consumption was 162.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.49 ms. Allocated memory is still 1.2 GB. Free memory is still 967.4 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 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 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. 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 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 6 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: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...