./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/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 32bit --witnessprinter.graph.data.programhash 6cf45fad85d859bd49993135d653eb18d378c433 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:16,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:16,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:16,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:16,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:16,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:16,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:16,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:16,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:16,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:16,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:16,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:16,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:16,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:16,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:16,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:16,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:16,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:16,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:16,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:16,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:16,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:16,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:16,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:16,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:16,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:16,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:16,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:16,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:16,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:16,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:16,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:16,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:16,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:16,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:16,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:16,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:16,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:16,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:16,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:16,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:16,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:59:16,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:16,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:16,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:16,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:16,300 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:16,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:16,300 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:16,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:16,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:16,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:16,303 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:16,304 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:16,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:16,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:16,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:16,305 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:16,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:16,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:16,305 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:16,306 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:16,306 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/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cf45fad85d859bd49993135d653eb18d378c433 [2019-10-22 08:59:16,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:16,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:16,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:16,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:16,353 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:16,353 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-10-22 08:59:16,402 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/data/b0699c0bb/1aaff2a407d74310b1566873936dcb64/FLAG98de1d34d [2019-10-22 08:59:16,769 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:16,769 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-10-22 08:59:16,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/data/b0699c0bb/1aaff2a407d74310b1566873936dcb64/FLAG98de1d34d [2019-10-22 08:59:17,176 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/bin/uautomizer/data/b0699c0bb/1aaff2a407d74310b1566873936dcb64 [2019-10-22 08:59:17,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:17,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:17,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:17,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:17,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:17,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17, skipping insertion in model container [2019-10-22 08:59:17,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:17,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:17,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:17,402 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:17,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:17,529 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:17,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17 WrapperNode [2019-10-22 08:59:17,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:17,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:17,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:17,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:17,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:17,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:17,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:17,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:17,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... [2019-10-22 08:59:17,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:17,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:17,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:17,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:17,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3b15e73-62c2-459c-a5d3-048a5c2293d4/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 [2019-10-22 08:59:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:17,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:17,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:17,852 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:17,852 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:59:17,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:17 BoogieIcfgContainer [2019-10-22 08:59:17,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:17,855 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:17,855 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:17,859 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:17,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:17,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:17" (1/3) ... [2019-10-22 08:59:17,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1343009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:17, skipping insertion in model container [2019-10-22 08:59:17,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:17,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:17" (2/3) ... [2019-10-22 08:59:17,862 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1343009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:17, skipping insertion in model container [2019-10-22 08:59:17,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:17,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:17" (3/3) ... [2019-10-22 08:59:17,864 INFO L371 chiAutomizerObserver]: Analyzing ICFG array_2-2.i [2019-10-22 08:59:17,906 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:17,906 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:17,906 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:17,906 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:17,907 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:17,907 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:17,907 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:17,907 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:17,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:59:17,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:59:17,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:17,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:17,948 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:59:17,949 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:59:17,949 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:17,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-10-22 08:59:17,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 08:59:17,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:17,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:17,955 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:59:17,955 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:59:17,962 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~mem1, main_#t~post0, main_#t~mem2, main_#t~mem3, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 4#L13-3true [2019-10-22 08:59:17,971 INFO L793 eck$LassoCheckResult]: Loop: 4#L13-3true assume !!(main_~i~0 < 2048);call main_#t~mem1 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem1;havoc main_#t~mem1;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 6#L13-2true main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 4#L13-3true [2019-10-22 08:59:17,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:17,976 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-10-22 08:59:17,987 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:17,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747018612] [2019-10-22 08:59:17,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:17,988 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:17,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,101 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:18,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-10-22 08:59:18,103 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:18,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658379880] [2019-10-22 08:59:18,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:18,103 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:18,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,121 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:18,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:18,122 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-10-22 08:59:18,122 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:18,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821055669] [2019-10-22 08:59:18,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:18,123 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:18,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:18,165 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:18,386 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:59:18,388 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:59:18,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:59:18,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:59:18,389 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:59:18,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:18,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:59:18,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:59:18,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: array_2-2.i_Iteration1_Lasso [2019-10-22 08:59:18,390 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:59:18,390 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:59:18,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:18,830 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:59:18,836 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:59:18,838 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 [2019-10-22 08:59:18,840 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,841 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,841 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,842 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,842 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,843 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,844 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,848 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 [2019-10-22 08:59:18,848 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,849 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,849 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,849 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,850 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,851 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,851 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,852 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 [2019-10-22 08:59:18,853 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,853 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,853 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,853 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,853 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,854 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,854 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,858 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 [2019-10-22 08:59:18,859 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,859 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,860 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,860 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,860 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,860 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,860 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,862 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 [2019-10-22 08:59:18,864 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,866 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,875 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,875 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,877 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:18,877 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:18,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,881 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 [2019-10-22 08:59:18,882 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,882 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,882 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,882 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,884 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:18,884 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:18,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,899 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 [2019-10-22 08:59:18,900 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,900 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,900 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,900 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,900 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,901 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,901 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,910 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 [2019-10-22 08:59:18,911 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,912 INFO L202 nArgumentSynthesizer]: 4 stem disjuncts [2019-10-22 08:59:18,912 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,912 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,915 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:59:18,915 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:18,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,945 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 [2019-10-22 08:59:18,946 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,946 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:18,946 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,946 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,950 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,950 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:18,950 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:18,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,952 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 [2019-10-22 08:59:18,957 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,957 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,957 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,957 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,958 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:18,959 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:18,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:18,962 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 [2019-10-22 08:59:18,962 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:18,962 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:18,963 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:18,964 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:18,970 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:18,970 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:19,062 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:59:19,175 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-10-22 08:59:19,175 INFO L444 ModelExtractionUtils]: 10 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. [2019-10-22 08:59:19,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:59:19,179 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 08:59:19,179 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:59:19,180 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 Supporting invariants [] [2019-10-22 08:59:19,194 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 08:59:19,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 08:59:19,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:19,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:59:19,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:19,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:59:19,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:19,300 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-10-22 08:59:19,301 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-10-22 08:59:19,359 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 8 states. [2019-10-22 08:59:19,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 08:59:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 08:59:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-10-22 08:59:19,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2019-10-22 08:59:19,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:19,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:59:19,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:19,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 08:59:19,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:19,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2019-10-22 08:59:19,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:19,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-10-22 08:59:19,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:59:19,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:59:19,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:59:19,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:19,376 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:19,376 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:19,376 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:19,377 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:19,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:19,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:19,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:59:19,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:19 BoogieIcfgContainer [2019-10-22 08:59:19,383 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:19,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:19,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:19,384 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:19,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:17" (3/4) ... [2019-10-22 08:59:19,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:59:19,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:19,392 INFO L168 Benchmark]: Toolchain (without parser) took 2211.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 962.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 119.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,393 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:19,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.33 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,397 INFO L168 Benchmark]: Boogie Preprocessor took 30.05 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,397 INFO L168 Benchmark]: RCFGBuilder took 256.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,398 INFO L168 Benchmark]: BuchiAutomizer took 1528.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.0 MB in the end (delta: 151.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:19,398 INFO L168 Benchmark]: Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:19,401 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.33 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.05 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1528.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.0 MB in the end (delta: 151.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 4095 * unknown-#length-unknown[A] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital149 mio100 ax100 hnf100 lsp95 ukn63 mio100 lsp64 div100 bol100 ite100 ukn100 eq164 hnf76 smp100 dnf100 smp100 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...