./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/a.05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/a.05.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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 e85157b182d77fbdd325a217c8910adc3b1acac0 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:32:20,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:32:20,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:32:20,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:32:20,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:32:20,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:32:20,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:32:20,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:32:20,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:32:20,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:32:20,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:32:20,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:32:20,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:32:20,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:32:20,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:32:20,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:32:20,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:32:20,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:32:20,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:32:20,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:32:20,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:32:20,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:32:20,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:32:20,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:32:20,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:32:20,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:32:20,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:32:20,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:32:20,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:32:20,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:32:20,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:32:20,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:32:20,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:32:20,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:32:20,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:32:20,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:32:20,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:32:20,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:32:20,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:32:20,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:32:20,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:32:20,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 01:32:20,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:32:20,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:32:20,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:32:20,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:32:20,295 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:32:20,295 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:32:20,296 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:32:20,296 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:32:20,296 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:32:20,297 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:32:20,297 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:32:20,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:32:20,298 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:32:20,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:32:20,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:32:20,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:32:20,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:32:20,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:32:20,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:32:20,301 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:32:20,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:32:20,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:32:20,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:32:20,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:32:20,303 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:32:20,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:32:20,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:32:20,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:32:20,304 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:32:20,305 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:32:20,306 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e85157b182d77fbdd325a217c8910adc3b1acac0 [2020-11-30 01:32:20,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:32:20,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:32:20,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:32:20,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:32:20,623 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:32:20,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/a.05.c [2020-11-30 01:32:20,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/data/18ee3c99b/ab15cda3c58749c387a57204d8847572/FLAG4decd9c47 [2020-11-30 01:32:21,273 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:32:21,274 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/sv-benchmarks/c/termination-restricted-15/a.05.c [2020-11-30 01:32:21,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/data/18ee3c99b/ab15cda3c58749c387a57204d8847572/FLAG4decd9c47 [2020-11-30 01:32:21,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/bin/uautomizer/data/18ee3c99b/ab15cda3c58749c387a57204d8847572 [2020-11-30 01:32:21,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:32:21,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:32:21,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:32:21,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:32:21,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:32:21,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733376e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21, skipping insertion in model container [2020-11-30 01:32:21,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:32:21,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:32:21,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:32:21,855 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:32:21,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:32:21,918 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:32:21,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21 WrapperNode [2020-11-30 01:32:21,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:32:21,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:32:21,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:32:21,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:32:21,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:32:21,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:32:21,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:32:21,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:32:21,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... [2020-11-30 01:32:21,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:32:21,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:32:21,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:32:21,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:32:21,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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 [2020-11-30 01:32:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:32:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:32:22,202 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:32:22,202 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:32:22,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:22 BoogieIcfgContainer [2020-11-30 01:32:22,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:32:22,205 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:32:22,205 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:32:22,217 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:32:22,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:32:22,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:32:21" (1/3) ... [2020-11-30 01:32:22,220 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a6c8df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:32:22, skipping insertion in model container [2020-11-30 01:32:22,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:32:22,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:21" (2/3) ... [2020-11-30 01:32:22,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a6c8df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:32:22, skipping insertion in model container [2020-11-30 01:32:22,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:32:22,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:22" (3/3) ... [2020-11-30 01:32:22,224 INFO L373 chiAutomizerObserver]: Analyzing ICFG a.05.c [2020-11-30 01:32:22,278 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:32:22,278 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:32:22,278 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:32:22,278 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:32:22,278 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:32:22,279 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:32:22,279 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:32:22,279 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:32:22,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-30 01:32:22,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:32:22,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:32:22,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:32:22,315 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 01:32:22,315 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:32:22,315 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:32:22,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-11-30 01:32:22,316 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-30 01:32:22,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:32:22,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:32:22,317 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 01:32:22,317 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-30 01:32:22,325 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L11-2true [2020-11-30 01:32:22,325 INFO L796 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~y~0 < 2147483647 && main_~x~0 >= 1 + main_~y~0);main_~y~0 := 1 + main_~y~0; 8#L11-2true [2020-11-30 01:32:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:22,332 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-30 01:32:22,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:32:22,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881963992] [2020-11-30 01:32:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:32:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:32:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:22,446 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-11-30 01:32:22,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:32:22,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695158451] [2020-11-30 01:32:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:32:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,464 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:32:22,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:22,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-30 01:32:22,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:32:22,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258772524] [2020-11-30 01:32:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:32:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:32:22,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:32:22,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:32:22,591 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:32:22,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:32:22,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:32:22,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:32:22,592 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 01:32:22,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:22,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:32:22,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:32:22,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.05.c_Iteration1_Loop [2020-11-30 01:32:22,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:32:22,593 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:32:22,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:22,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:22,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:22,792 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:32:22,793 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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) [2020-11-30 01:32:22,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:32:22,818 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:22,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:32:22,828 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_9722695c-d1a0-43f9-b604-5e10190262bd/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 [2020-11-30 01:32:22,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:32:22,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 01:32:22,881 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 01:32:22,881 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_9722695c-d1a0-43f9-b604-5e10190262bd/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 [2020-11-30 01:32:22,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 01:32:22,927 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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) [2020-11-30 01:32:22,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 01:32:22,982 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:23,028 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 01:32:23,029 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 01:32:23,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 01:32:23,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 01:32:23,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 01:32:23,030 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 01:32:23,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:23,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 01:32:23,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 01:32:23,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.05.c_Iteration1_Loop [2020-11-30 01:32:23,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 01:32:23,030 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 01:32:23,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:23,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:23,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 01:32:23,183 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 01:32:23,188 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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) [2020-11-30 01:32:23,202 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 [2020-11-30 01:32:23,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:32:23,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:32:23,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:32:23,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:32:23,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:32:23,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:23,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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) [2020-11-30 01:32:23,283 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 [2020-11-30 01:32:23,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:32:23,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:32:23,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:32:23,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:32:23,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 01:32:23,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 01:32:23,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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 [2020-11-30 01:32:23,345 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 [2020-11-30 01:32:23,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 01:32:23,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 01:32:23,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 01:32:23,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 01:32:23,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 01:32:23,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 01:32:23,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 01:32:23,359 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 01:32:23,365 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 01:32:23,365 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9722695c-d1a0-43f9-b604-5e10190262bd/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 [2020-11-30 01:32:23,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 01:32:23,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 01:32:23,413 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 01:32:23,414 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 4294967293 Supporting invariants [] [2020-11-30 01:32:23,441 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 01:32:23,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:32:23,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:32:23,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:32:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:32:23,523 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:32:23,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:32:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:32:23,544 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 [2020-11-30 01:32:23,546 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-11-30 01:32:23,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-11-30 01:32:23,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 01:32:23,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-30 01:32:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-11-30 01:32:23,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-11-30 01:32:23,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:32:23,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-30 01:32:23,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:32:23,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-30 01:32:23,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 01:32:23,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-11-30 01:32:23,614 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:32:23,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-11-30 01:32:23,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 01:32:23,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 01:32:23,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 01:32:23,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:32:23,619 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:32:23,619 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:32:23,620 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:32:23,620 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:32:23,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:32:23,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 01:32:23,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 01:32:23,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:32:23 BoogieIcfgContainer [2020-11-30 01:32:23,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:32:23,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:32:23,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:32:23,628 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:32:23,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:22" (3/4) ... [2020-11-30 01:32:23,631 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:32:23,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:32:23,633 INFO L168 Benchmark]: Toolchain (without parser) took 1970.85 ms. Allocated memory is still 94.4 MB. Free memory was 58.9 MB in the beginning and 44.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:23,634 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:23,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.31 ms. Allocated memory is still 94.4 MB. Free memory was 58.7 MB in the beginning and 73.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:23,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.59 ms. Allocated memory is still 94.4 MB. Free memory was 73.1 MB in the beginning and 72.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:23,637 INFO L168 Benchmark]: Boogie Preprocessor took 18.74 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 942.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:23,638 INFO L168 Benchmark]: RCFGBuilder took 214.74 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 63.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:23,639 INFO L168 Benchmark]: BuchiAutomizer took 1422.17 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 45.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:23,639 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 94.4 MB. Free memory was 45.4 MB in the beginning and 44.9 MB in the end (delta: 448.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:23,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.31 ms. Allocated memory is still 94.4 MB. Free memory was 58.7 MB in the beginning and 73.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.59 ms. Allocated memory is still 94.4 MB. Free memory was 73.1 MB in the beginning and 72.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.74 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 942.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 214.74 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 63.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1422.17 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 45.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.96 ms. Allocated memory is still 94.4 MB. Free memory was 45.4 MB in the beginning and 44.9 MB in the end (delta: 448.6 kB). There was no memory consumed. Max. memory is 16.1 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 -2 * y + 4294967293 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 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: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...