./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.04.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43fde4d70b7da804a59b99f40748f062520fcfbd ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:09:31,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:09:31,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:09:31,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:09:31,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:09:31,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:09:31,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:09:31,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:09:31,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:09:31,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:09:31,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:09:31,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:09:31,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:09:31,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:09:31,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:09:31,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:09:31,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:09:31,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:09:31,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:09:31,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:09:31,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:09:31,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:09:31,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:09:31,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:09:31,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:09:31,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:09:31,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:09:31,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:09:31,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:09:31,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:09:31,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:09:31,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:09:31,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:09:31,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:09:31,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:09:31,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:09:31,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:09:31,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:09:31,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:09:31,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:09:31,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:09:31,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 18:09:31,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:09:31,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:09:31,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:09:31,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:09:31,180 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:09:31,180 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:09:31,180 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:09:31,180 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:09:31,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:09:31,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:09:31,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:09:31,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:09:31,183 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:09:31,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:09:31,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:09:31,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:09:31,183 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:09:31,183 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:09:31,184 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_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43fde4d70b7da804a59b99f40748f062520fcfbd [2019-12-07 18:09:31,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:09:31,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:09:31,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:09:31,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:09:31,291 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:09:31,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.04.c [2019-12-07 18:09:31,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/data/701f975d7/ef37963227b648e8900e63e9f42c3fde/FLAG4150147c9 [2019-12-07 18:09:31,747 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:09:31,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/sv-benchmarks/c/termination-restricted-15/b.04.c [2019-12-07 18:09:31,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/data/701f975d7/ef37963227b648e8900e63e9f42c3fde/FLAG4150147c9 [2019-12-07 18:09:31,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/bin/uautomizer/data/701f975d7/ef37963227b648e8900e63e9f42c3fde [2019-12-07 18:09:31,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:09:31,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:09:31,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:09:31,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:09:31,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:09:31,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446e037f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31, skipping insertion in model container [2019-12-07 18:09:31,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:09:31,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:09:31,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:09:31,880 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:09:31,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:09:31,936 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:09:31,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31 WrapperNode [2019-12-07 18:09:31,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:09:31,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:09:31,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:09:31,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:09:31,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:09:31,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:09:31,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:09:31,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:09:31,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... [2019-12-07 18:09:31,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:09:31,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:09:31,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:09:31,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:09:31,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:09:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:09:32,095 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:09:32,096 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 18:09:32,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:09:32 BoogieIcfgContainer [2019-12-07 18:09:32,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:09:32,097 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:09:32,097 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:09:32,099 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:09:32,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:09:32,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:09:31" (1/3) ... [2019-12-07 18:09:32,100 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c69d6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:09:32, skipping insertion in model container [2019-12-07 18:09:32,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:09:32,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:09:31" (2/3) ... [2019-12-07 18:09:32,101 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c69d6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:09:32, skipping insertion in model container [2019-12-07 18:09:32,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:09:32,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:09:32" (3/3) ... [2019-12-07 18:09:32,102 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.04.c [2019-12-07 18:09:32,130 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:09:32,131 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:09:32,131 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:09:32,131 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:09:32,131 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:09:32,131 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:09:32,131 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:09:32,131 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:09:32,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-12-07 18:09:32,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:09:32,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:09:32,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:09:32,156 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:09:32,156 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:09:32,156 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:09:32,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-12-07 18:09:32,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 18:09:32,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:09:32,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:09:32,157 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 18:09:32,157 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 18:09:32,162 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~tmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~tmp~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L10-2true [2019-12-07 18:09:32,162 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~x~0 > main_~y~0);main_~tmp~0 := main_~x~0;main_~x~0 := main_~y~0;main_~y~0 := main_~tmp~0; 7#L10-2true [2019-12-07 18:09:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:09:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 18:09:32,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:09:32,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003026799] [2019-12-07 18:09:32,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:09:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:09:32,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:09:32,235 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-12-07 18:09:32,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:09:32,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784042323] [2019-12-07 18:09:32,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:09:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:09:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:09:32,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 18:09:32,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:09:32,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955007628] [2019-12-07 18:09:32,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:09:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:09:32,255 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:09:32,285 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:09:32,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:09:32,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:09:32,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:09:32,286 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 18:09:32,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:09:32,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:09:32,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:09:32,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.04.c_Iteration1_Loop [2019-12-07 18:09:32,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:09:32,287 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:09:32,301 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 18:09:32,309 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 18:09:32,312 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 18:09:32,387 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:09:32,388 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:32,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:09:32,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:09:32,400 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:09:32,400 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:32,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:09:32,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:09:32,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 18:09:32,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:32,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 18:09:32,414 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:32,426 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 18:09:32,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 18:09:34,994 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 18:09:34,996 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 18:09:34,996 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 18:09:34,996 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 18:09:34,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 18:09:34,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 18:09:34,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:09:34,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 18:09:34,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 18:09:34,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.04.c_Iteration1_Loop [2019-12-07 18:09:34,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 18:09:34,996 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 18:09:34,998 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 18:09:35,001 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 18:09:35,003 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 18:09:35,047 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 18:09:35,051 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:35,054 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 18:09:35,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:09:35,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:09:35,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:09:35,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:09:35,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:09:35,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:09:35,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:35,069 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 18:09:35,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:09:35,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:09:35,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:09:35,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:09:35,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 18:09:35,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 18:09:35,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:35,080 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 18:09:35,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 18:09:35,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 18:09:35,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 18:09:35,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 18:09:35,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 18:09:35,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 18:09:35,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 18:09:35,087 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 18:09:35,090 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 18:09:35,090 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_d6f8e567-bb49-4019-a66a-3fe4a646c336/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 18:09:35,095 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 18:09:35,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 18:09:35,096 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 18:09:35,096 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 18:09:35,100 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 18:09:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:09:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:09:35,125 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:09:35,126 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:09:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:09:35,134 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:09:35,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:09:35,134 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 18:09:35,144 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 18:09:35,145 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-12-07 18:09:35,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-12-07 18:09:35,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 18:09:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 18:09:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-12-07 18:09:35,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-12-07 18:09:35,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:09:35,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 18:09:35,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:09:35,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 18:09:35,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 18:09:35,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-12-07 18:09:35,174 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:09:35,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-12-07 18:09:35,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 18:09:35,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 18:09:35,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 18:09:35,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:09:35,177 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:09:35,177 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:09:35,177 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:09:35,177 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:09:35,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:09:35,177 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 18:09:35,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 18:09:35,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:09:35 BoogieIcfgContainer [2019-12-07 18:09:35,181 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:09:35,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:09:35,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:09:35,181 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:09:35,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:09:32" (3/4) ... [2019-12-07 18:09:35,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:09:35,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:09:35,185 INFO L168 Benchmark]: Toolchain (without parser) took 3422.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -69.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:09:35,186 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:09:35,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:09:35,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:09:35,187 INFO L168 Benchmark]: Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:09:35,187 INFO L168 Benchmark]: RCFGBuilder took 125.84 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:09:35,188 INFO L168 Benchmark]: BuchiAutomizer took 3084.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.6 MB). Peak memory consumption was 86.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:09:35,188 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:09:35,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 125.84 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3084.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 86.6 MB). Peak memory consumption was 86.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf88 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...