./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01_bug02.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 c5465a084053aead702161d951dd339bfa1665d5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:12:07,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:12:07,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:12:07,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:12:07,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:12:07,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:12:07,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:12:07,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:12:07,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:12:07,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:12:07,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:12:07,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:12:07,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:12:07,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:12:07,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:12:07,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:12:07,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:12:07,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:12:07,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:12:07,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:12:07,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:12:07,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:12:07,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:12:07,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:12:07,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:12:07,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:12:07,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:12:07,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:12:07,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:12:07,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:12:07,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:12:07,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:12:07,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:12:07,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:12:07,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:12:07,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:12:07,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:12:07,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:12:07,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:12:07,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:12:07,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:12:07,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:12:07,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:12:07,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:12:07,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:12:07,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:12:07,531 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:12:07,531 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:12:07,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:12:07,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:12:07,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:12:07,533 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:12:07,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:12:07,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:12:07,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:12:07,534 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:12:07,534 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:12:07,534 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_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 -> c5465a084053aead702161d951dd339bfa1665d5 [2019-12-07 18:12:07,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:12:07,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:12:07,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:12:07,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:12:07,646 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:12:07,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/../../sv-benchmarks/c/loops/sum01_bug02.i [2019-12-07 18:12:07,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/data/533ab027b/7e86b40cf0194bd38965c131002bff0f/FLAG43ef50646 [2019-12-07 18:12:08,013 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:12:08,013 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/sv-benchmarks/c/loops/sum01_bug02.i [2019-12-07 18:12:08,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/data/533ab027b/7e86b40cf0194bd38965c131002bff0f/FLAG43ef50646 [2019-12-07 18:12:08,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/bin/uautomizer/data/533ab027b/7e86b40cf0194bd38965c131002bff0f [2019-12-07 18:12:08,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:12:08,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:12:08,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:12:08,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:12:08,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:12:08,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e36ea05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08, skipping insertion in model container [2019-12-07 18:12:08,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:12:08,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:12:08,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:12:08,144 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:12:08,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:12:08,196 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:12:08,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08 WrapperNode [2019-12-07 18:12:08,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:12:08,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:12:08,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:12:08,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:12:08,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:12:08,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:12:08,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:12:08,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:12:08,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... [2019-12-07 18:12:08,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:12:08,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:12:08,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:12:08,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:12:08,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:12:08,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:12:08,365 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:12:08,366 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 18:12:08,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:12:08 BoogieIcfgContainer [2019-12-07 18:12:08,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:12:08,367 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:12:08,367 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:12:08,369 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:12:08,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:12:08,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:12:08" (1/3) ... [2019-12-07 18:12:08,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1664c7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:12:08, skipping insertion in model container [2019-12-07 18:12:08,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:12:08,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:12:08" (2/3) ... [2019-12-07 18:12:08,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1664c7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:12:08, skipping insertion in model container [2019-12-07 18:12:08,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:12:08,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:12:08" (3/3) ... [2019-12-07 18:12:08,372 INFO L371 chiAutomizerObserver]: Analyzing ICFG sum01_bug02.i [2019-12-07 18:12:08,401 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:12:08,401 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:12:08,401 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:12:08,401 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:12:08,401 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:12:08,401 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:12:08,401 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:12:08,401 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:12:08,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:12:08,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:12:08,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:12:08,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:12:08,427 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:12:08,427 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:12:08,427 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:12:08,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 18:12:08,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:12:08,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:12:08,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:12:08,428 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:12:08,428 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:12:08,433 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~post2, main_#t~post1, main_~i~0, main_~j~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~j~0 := 10;main_~n~0 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;main_~sn~0 := 0;main_~i~0 := 1; 3#L13-3true [2019-12-07 18:12:08,433 INFO L796 eck$LassoCheckResult]: Loop: 3#L13-3true assume !!(main_~i~0 <= main_~n~0); 11#L14true assume main_~i~0 < main_~j~0;main_~sn~0 := 2 + main_~sn~0; 7#L14-2true main_#t~post2 := main_~j~0;main_~j~0 := main_#t~post2 - 1;havoc main_#t~post2; 6#L13-2true main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1; 3#L13-3true [2019-12-07 18:12:08,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:08,437 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:12:08,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:08,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117229140] [2019-12-07 18:12:08,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,518 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:12:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1203686, now seen corresponding path program 1 times [2019-12-07 18:12:08,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:08,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044139804] [2019-12-07 18:12:08,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,529 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:12:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:08,530 INFO L82 PathProgramCache]: Analyzing trace with hash 29832837, now seen corresponding path program 1 times [2019-12-07 18:12:08,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:08,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737039959] [2019-12-07 18:12:08,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:08,551 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:12:08,586 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:12:08,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:12:08,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:12:08,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:12:08,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:12:08,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:08,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:12:08,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:12:08,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2019-12-07 18:12:08,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:12:08,588 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:12:08,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,669 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:12:08,669 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:12:08,673 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:12:08,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:12:08,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:12:08,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=5}, {ULTIMATE.start_main_~sn~0=4}, {ULTIMATE.start_main_~sn~0=-7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:12:08,706 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:12:08,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:12:08,788 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:12:08,790 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:12:08,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:12:08,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:12:08,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:12:08,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:12:08,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:08,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:12:08,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:12:08,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration1_Loop [2019-12-07 18:12:08,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:12:08,791 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:12:08,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:08,842 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:12:08,847 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:08,851 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 [2019-12-07 18:12:08,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:12:08,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:12:08,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:12:08,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:12:08,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:12:08,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:12:08,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:12:08,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,862 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 [2019-12-07 18:12:08,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:12:08,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:12:08,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:12:08,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:12:08,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:12:08,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:12:08,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:12:08,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:12:08,871 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:12:08,871 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:08,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:12:08,874 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:12:08,874 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:12:08,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:12:08,877 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:12:08,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:08,904 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:12:08,905 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:08,914 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:12:08,915 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:12:08,958 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 18:12:08,959 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 5 states. [2019-12-07 18:12:09,005 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 5 states. Result 34 states and 44 transitions. Complement of second has 7 states. [2019-12-07 18:12:09,005 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 [2019-12-07 18:12:09,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 18:12:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-12-07 18:12:09,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 18:12:09,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 18:12:09,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 1 letters. Loop has 8 letters. [2019-12-07 18:12:09,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-12-07 18:12:09,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:12:09,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 14 states and 17 transitions. [2019-12-07 18:12:09,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 18:12:09,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 18:12:09,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-12-07 18:12:09,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 18:12:09,016 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 18:12:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-12-07 18:12:09,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2019-12-07 18:12:09,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 18:12:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 18:12:09,035 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 18:12:09,035 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 18:12:09,035 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:12:09,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-12-07 18:12:09,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 18:12:09,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:12:09,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:12:09,036 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:12:09,036 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:12:09,036 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~post2, main_#t~post1, main_~i~0, main_~j~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~j~0 := 10;main_~n~0 := (if main_#t~nondet0 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet0 % 4294967296 % 4294967296 else main_#t~nondet0 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet0;main_~sn~0 := 0;main_~i~0 := 1; 93#L13-3 assume !!(main_~i~0 <= main_~n~0); 89#L14 [2019-12-07 18:12:09,036 INFO L796 eck$LassoCheckResult]: Loop: 89#L14 assume !(main_~i~0 < main_~j~0); 96#L14-2 main_#t~post2 := main_~j~0;main_~j~0 := main_#t~post2 - 1;havoc main_#t~post2; 94#L13-2 main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1; 88#L13-3 assume !!(main_~i~0 <= main_~n~0); 89#L14 [2019-12-07 18:12:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:09,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1001, now seen corresponding path program 1 times [2019-12-07 18:12:09,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:09,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088607131] [2019-12-07 18:12:09,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:09,047 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:12:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:09,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1356538, now seen corresponding path program 1 times [2019-12-07 18:12:09,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:09,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306195538] [2019-12-07 18:12:09,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:12:09,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:12:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:09,053 INFO L82 PathProgramCache]: Analyzing trace with hash 924877538, now seen corresponding path program 1 times [2019-12-07 18:12:09,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:12:09,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916815589] [2019-12-07 18:12:09,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:12:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:12:09,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916815589] [2019-12-07 18:12:09,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:12:09,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:12:09,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031614966] [2019-12-07 18:12:09,092 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:12:09,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:12:09,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:12:09,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:12:09,093 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:12:09,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:09,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:12:09,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:12:09,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2019-12-07 18:12:09,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:12:09,093 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:12:09,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,126 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:12:09,126 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:09,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:12:09,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:12:09,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:12:09,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:09,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:12:09,137 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:09,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:12:09,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:12:09,571 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:12:09,572 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:12:09,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:12:09,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:12:09,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:12:09,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:12:09,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:12:09,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:12:09,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:12:09,573 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01_bug02.i_Iteration2_Loop [2019-12-07 18:12:09,573 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:12:09,573 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:12:09,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 18:12:09,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:12:09,603 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:09,606 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 [2019-12-07 18:12:09,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:12:09,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:12:09,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:12:09,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:12:09,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:12:09,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:12:09,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:12:09,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:09,613 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 [2019-12-07 18:12:09,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:12:09,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:12:09,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:12:09,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:12:09,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:12:09,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:12:09,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:12:09,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:12:09,621 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-12-07 18:12:09,621 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f002ceba-f495-4ce5-a64b-ec8c42427a80/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 [2019-12-07 18:12:09,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:12:09,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:12:09,624 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:12:09,624 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 18:12:09,625 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:12:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:12:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:09,638 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:12:09,638 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:12:09,641 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:12:09,642 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:12:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:12:09,648 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 [2019-12-07 18:12:09,648 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 18:12:09,663 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 28 transitions. Complement of second has 6 states. [2019-12-07 18:12:09,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 18:12:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 18:12:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-12-07 18:12:09,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 18:12:09,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 18:12:09,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2019-12-07 18:12:09,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:12:09,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2019-12-07 18:12:09,666 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:12:09,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-12-07 18:12:09,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:12:09,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:12:09,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:12:09,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:12:09,666 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:09,667 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:09,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:12:09,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:12:09,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:12:09,669 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-12-07 18:12:09,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:12:09,671 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 18:12:09,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:12:09,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:12:09,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:12:09,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:12:09,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:12:09,672 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 18:12:09,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:12:09,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:12:09,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:12:09,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:12:09 BoogieIcfgContainer [2019-12-07 18:12:09,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:12:09,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:12:09,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:12:09,677 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:12:09,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:12:08" (3/4) ... [2019-12-07 18:12:09,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:12:09,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:12:09,681 INFO L168 Benchmark]: Toolchain (without parser) took 1652.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 938.1 MB in the beginning and 900.0 MB in the end (delta: 38.1 MB). Peak memory consumption was 116.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:09,682 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:12:09,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:09,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:12:09,683 INFO L168 Benchmark]: Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.1 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. [2019-12-07 18:12:09,684 INFO L168 Benchmark]: RCFGBuilder took 135.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:09,684 INFO L168 Benchmark]: BuchiAutomizer took 1309.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.0 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:12:09,684 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.1 GB. Free memory is still 900.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:12:09,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.6 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.35 ms. Allocated memory is still 1.1 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 135.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1309.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.0 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 ms. Allocated memory is still 1.1 GB. Free memory is still 900.0 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 j + -1 * i and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 12 SDslu, 12 SDs, 0 SdLazy, 26 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf97 lsp89 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp100 dnf100 smp100 tf107 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...