./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.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_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:26:29,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:26:29,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:26:29,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:26:29,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:26:29,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:26:29,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:26:29,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:26:29,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:26:29,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:26:29,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:26:29,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:26:29,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:26:29,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:26:29,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:26:29,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:26:29,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:26:29,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:26:29,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:26:29,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:26:29,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:26:29,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:26:29,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:26:29,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:26:29,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:26:29,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:26:29,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:26:29,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:26:29,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:26:29,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:26:29,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:26:29,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:26:29,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:26:29,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:26:29,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:26:29,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:26:29,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:26:29,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:26:29,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:26:29,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:26:29,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:26:29,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 17:26:29,287 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:26:29,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:26:29,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:26:29,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:26:29,288 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:26:29,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:26:29,288 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:26:29,288 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:26:29,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:26:29,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:26:29,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:26:29,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:26:29,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:26:29,291 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:26:29,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:26:29,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:26:29,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:26:29,291 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:26:29,292 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:26:29,292 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_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2019-12-07 17:26:29,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:26:29,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:26:29,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:26:29,400 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:26:29,400 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:26:29,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2019-12-07 17:26:29,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/data/49968a329/566d6bb59b0c483e8a8cb63c747d7ccb/FLAGb12d5af19 [2019-12-07 17:26:29,770 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:26:29,770 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/sv-benchmarks/c/termination-restricted-15/Sequence.c [2019-12-07 17:26:29,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/data/49968a329/566d6bb59b0c483e8a8cb63c747d7ccb/FLAGb12d5af19 [2019-12-07 17:26:29,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/bin/uautomizer/data/49968a329/566d6bb59b0c483e8a8cb63c747d7ccb [2019-12-07 17:26:29,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:26:29,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:26:29,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:29,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:26:29,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:26:29,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:29,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2cbba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29, skipping insertion in model container [2019-12-07 17:26:29,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:29,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:26:29,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:26:29,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:29,911 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:26:29,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:29,971 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:26:29,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29 WrapperNode [2019-12-07 17:26:29,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:29,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:29,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:26:29,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:26:29,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:29,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:29,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:29,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:26:29,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:26:29,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:26:30,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... [2019-12-07 17:26:30,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:26:30,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:26:30,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:26:30,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:26:30,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:26:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:26:30,133 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:26:30,133 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 17:26:30,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:30 BoogieIcfgContainer [2019-12-07 17:26:30,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:26:30,134 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:26:30,134 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:26:30,137 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:26:30,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:26:30,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:26:29" (1/3) ... [2019-12-07 17:26:30,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@241fdb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:26:30, skipping insertion in model container [2019-12-07 17:26:30,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:26:30,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:29" (2/3) ... [2019-12-07 17:26:30,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@241fdb69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:26:30, skipping insertion in model container [2019-12-07 17:26:30,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:26:30,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:30" (3/3) ... [2019-12-07 17:26:30,139 INFO L371 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2019-12-07 17:26:30,171 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:26:30,171 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:26:30,171 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:26:30,171 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:26:30,171 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:26:30,171 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:26:30,171 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:26:30,171 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:26:30,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:26:30,192 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-12-07 17:26:30,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:26:30,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:26:30,196 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:26:30,196 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:26:30,197 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:26:30,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 17:26:30,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-12-07 17:26:30,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:26:30,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:26:30,198 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 17:26:30,198 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:26:30,202 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2019-12-07 17:26:30,203 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2019-12-07 17:26:30,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,206 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 17:26:30,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:30,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663628413] [2019-12-07 17:26:30,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,273 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:26:30,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,274 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-12-07 17:26:30,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:30,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446009387] [2019-12-07 17:26:30,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,283 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:26:30,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 17:26:30,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:30,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677654643] [2019-12-07 17:26:30,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,296 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:26:30,322 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:26:30,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:26:30,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:26:30,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:26:30,323 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:26:30,323 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:26:30,323 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:26:30,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:26:30,323 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2019-12-07 17:26:30,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:26:30,324 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:26:30,338 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 17:26:30,345 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 17:26:30,348 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 17:26:30,399 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:26:30,399 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:26:30,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:26:30,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:26:30,411 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_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:26:30,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:26:30,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:26:30,420 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_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:26:30,423 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:26:30,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:26:30,437 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:26:30,438 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:26:30,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:26:30,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:26:30,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:26:30,438 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:26:30,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:26:30,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:26:30,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:26:30,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2019-12-07 17:26:30,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:26:30,439 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:26:30,440 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 17:26:30,443 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 17:26:30,446 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 17:26:30,478 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:26:30,482 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,485 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 17:26:30,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:26:30,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:26:30,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:26:30,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:26:30,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:26:30,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:26:30,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,501 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 17:26:30,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:26:30,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:26:30,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:26:30,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:26:30,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 17:26:30,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 17:26:30,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,515 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 17:26:30,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:26:30,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:26:30,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:26:30,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:26:30,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:26:30,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:26:30,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:26:30,519 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:26:30,522 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:26:30,522 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:26:30,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:26:30,526 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:26:30,527 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-12-07 17:26:30,530 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:26:30,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:30,560 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:26:30,561 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:26:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:30,569 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:26:30,570 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:26:30,570 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 17:26:30,580 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 17:26:30,581 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2019-12-07 17:26:30,605 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 19 states and 28 transitions. Complement of second has 5 states. [2019-12-07 17:26:30,606 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 17:26:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 17:26:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 17:26:30,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2019-12-07 17:26:30,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 17:26:30,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 17:26:30,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2019-12-07 17:26:30,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:26:30,615 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2019-12-07 17:26:30,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-12-07 17:26:30,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 17:26:30,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-12-07 17:26:30,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:26:30,617 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 17:26:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-12-07 17:26:30,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2019-12-07 17:26:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 17:26:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-12-07 17:26:30,637 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2019-12-07 17:26:30,637 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2019-12-07 17:26:30,637 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:26:30,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2019-12-07 17:26:30,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-12-07 17:26:30,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:26:30,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:26:30,638 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 17:26:30,638 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-12-07 17:26:30,638 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2019-12-07 17:26:30,638 INFO L796 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2019-12-07 17:26:30,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-12-07 17:26:30,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:30,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256024127] [2019-12-07 17:26:30,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:30,662 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 17:26:30,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256024127] [2019-12-07 17:26:30,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:26:30,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:26:30,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292336112] [2019-12-07 17:26:30,667 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 17:26:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,667 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2019-12-07 17:26:30,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:30,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545047228] [2019-12-07 17:26:30,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:30,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:26:30,683 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:26:30,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:26:30,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:26:30,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:26:30,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 17:26:30,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:26:30,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:26:30,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:26:30,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2019-12-07 17:26:30,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:26:30,684 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:26:30,685 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 17:26:30,687 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 17:26:30,693 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 17:26:30,723 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:26:30,723 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:26:30,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:26:30,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 17:26:30,730 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 17:26:30,735 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 17:26:30,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 17:26:30,750 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 17:26:30,751 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 17:26:30,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 17:26:30,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 17:26:30,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 17:26:30,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 17:26:30,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 17:26:30,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 17:26:30,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 17:26:30,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2019-12-07 17:26:30,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 17:26:30,751 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 17:26:30,752 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 17:26:30,757 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 17:26:30,759 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 17:26:30,782 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 17:26:30,782 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,785 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 17:26:30,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 17:26:30,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 17:26:30,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 17:26:30,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 17:26:30,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 17:26:30,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 17:26:30,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 17:26:30,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 17:26:30,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 17:26:30,791 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f0136b4-318a-4a3f-8cc7-92a59ff2c8f9/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 17:26:30,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 17:26:30,794 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 17:26:30,794 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 17:26:30,794 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2019-12-07 17:26:30,795 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 17:26:30,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:30,821 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:26:30,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:26:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:30,825 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:26:30,825 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:26:30,825 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 17:26:30,826 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 17:26:30,826 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-12-07 17:26:30,829 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2019-12-07 17:26:30,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 17:26:30,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-12-07 17:26:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2019-12-07 17:26:30,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2019-12-07 17:26:30,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2019-12-07 17:26:30,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2019-12-07 17:26:30,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 17:26:30,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2019-12-07 17:26:30,831 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:26:30,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2019-12-07 17:26:30,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:26:30,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:26:30,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:26:30,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:26:30,831 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:30,831 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:30,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:26:30,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:26:30,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:26:30,834 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-12-07 17:26:30,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:26:30,836 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-12-07 17:26:30,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:26:30,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-12-07 17:26:30,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:26:30,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 17:26:30,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 17:26:30,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:26:30,837 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:26:30,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:26:30,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 17:26:30,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 17:26:30,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:26:30 BoogieIcfgContainer [2019-12-07 17:26:30,842 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:26:30,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:26:30,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:26:30,842 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:26:30,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:30" (3/4) ... [2019-12-07 17:26:30,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:26:30,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:26:30,847 INFO L168 Benchmark]: Toolchain (without parser) took 1058.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 945.1 MB in the beginning and 958.1 MB in the end (delta: -12.9 MB). Peak memory consumption was 95.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:30,847 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:30,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:30,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.03 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 17:26:30,848 INFO L168 Benchmark]: Boogie Preprocessor took 11.34 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 17:26:30,849 INFO L168 Benchmark]: RCFGBuilder took 128.10 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:30,849 INFO L168 Benchmark]: BuchiAutomizer took 707.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.1 MB in the end (delta: 128.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:30,849 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 1.1 GB. Free memory is still 958.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:30,851 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.03 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 11.34 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. * RCFGBuilder took 128.10 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 707.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 958.1 MB in the end (delta: 128.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 ms. Allocated memory is still 1.1 GB. Free memory is still 958.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...