./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.11.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_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.11.c -s /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 7711c52d03cf170922076ef9d83d98ea57ca0c02 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:12:50,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:12:50,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:12:50,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:12:50,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:12:50,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:12:50,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:12:50,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:12:50,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:12:50,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:12:50,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:12:50,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:12:50,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:12:50,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:12:50,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:12:50,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:12:50,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:12:50,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:12:50,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:12:50,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:12:50,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:12:50,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:12:50,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:12:50,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:12:50,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:12:50,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:12:50,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:12:50,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:12:50,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:12:50,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:12:50,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:12:50,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:12:50,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:12:50,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:12:50,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:12:50,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:12:50,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:12:50,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:12:50,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:12:50,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:12:50,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:12:50,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:12:50,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:12:50,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:12:50,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:12:50,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:12:50,501 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:12:50,502 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:12:50,502 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:12:50,502 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:12:50,502 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:12:50,503 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:12:50,504 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:12:50,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:12:50,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:12:50,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:12:50,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:12:50,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:12:50,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:12:50,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:12:50,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:12:50,506 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:12:50,506 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:12:50,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:12:50,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:12:50,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:12:50,507 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:12:50,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:12:50,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:12:50,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:12:50,508 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:12:50,511 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:12:50,512 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_001380ea-0499-4f02-bf3a-f2418d33526c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7711c52d03cf170922076ef9d83d98ea57ca0c02 [2020-11-30 00:12:50,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:12:50,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:12:50,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:12:50,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:12:50,904 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:12:50,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.11.c [2020-11-30 00:12:50,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/data/b633673f4/4cae294073d64f71a1cd520e5675bdb2/FLAGb7e57b158 [2020-11-30 00:12:51,526 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:12:51,527 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/sv-benchmarks/c/termination-restricted-15/b.11.c [2020-11-30 00:12:51,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/data/b633673f4/4cae294073d64f71a1cd520e5675bdb2/FLAGb7e57b158 [2020-11-30 00:12:51,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/data/b633673f4/4cae294073d64f71a1cd520e5675bdb2 [2020-11-30 00:12:51,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:12:51,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:12:51,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:51,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:12:51,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:12:51,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:51" (1/1) ... [2020-11-30 00:12:51,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cec13db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:51, skipping insertion in model container [2020-11-30 00:12:51,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:12:51" (1/1) ... [2020-11-30 00:12:51,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:12:51,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:12:52,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:52,117 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:12:52,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:12:52,172 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:12:52,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52 WrapperNode [2020-11-30 00:12:52,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:12:52,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:52,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:12:52,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:12:52,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:12:52,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:12:52,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:12:52,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:12:52,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... [2020-11-30 00:12:52,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:12:52,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:12:52,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:12:52,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:12:52,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:12:52,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:12:52,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:12:52,497 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:12:52,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:52 BoogieIcfgContainer [2020-11-30 00:12:52,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:12:52,500 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:12:52,500 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:12:52,503 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:12:52,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:52,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:12:51" (1/3) ... [2020-11-30 00:12:52,505 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a5a951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:12:52, skipping insertion in model container [2020-11-30 00:12:52,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:52,505 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:12:52" (2/3) ... [2020-11-30 00:12:52,506 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a5a951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:12:52, skipping insertion in model container [2020-11-30 00:12:52,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:12:52,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:52" (3/3) ... [2020-11-30 00:12:52,507 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.11.c [2020-11-30 00:12:52,569 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:12:52,574 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:12:52,575 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:12:52,575 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:12:52,575 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:12:52,575 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:12:52,575 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:12:52,576 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:12:52,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-30 00:12:52,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:12:52,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:12:52,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:12:52,612 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 00:12:52,612 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:12:52,612 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:12:52,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-30 00:12:52,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:12:52,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:12:52,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:12:52,614 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-30 00:12:52,614 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:12:52,622 INFO L794 eck$LassoCheckResult]: Stem: 4#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#L15-2true [2020-11-30 00:12:52,623 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 6#L12true assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2020-11-30 00:12:52,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:52,629 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-30 00:12:52,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:52,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011086648] [2020-11-30 00:12:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:52,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-11-30 00:12:52,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:52,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265428775] [2020-11-30 00:12:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,776 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:52,778 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-11-30 00:12:52,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:52,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062624210] [2020-11-30 00:12:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:52,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:52,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:52,931 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2020-11-30 00:12:52,976 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:12:52,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:12:52,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:12:52,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:12:52,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:12:52,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:52,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:12:52,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:12:52,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2020-11-30 00:12:52,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:12:52,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:12:53,000 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 00:12:53,012 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 00:12:53,022 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 00:12:53,147 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:12:53,149 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:53,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:53,165 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 00:12:53,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:12:53,177 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_001380ea-0499-4f02-bf3a-f2418d33526c/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) [2020-11-30 00:12:53,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:53,224 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:53,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:12:53,232 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_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:53,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:53,276 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:53,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:12:53,324 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 00:12:53,370 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:12:53,372 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:12:53,372 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:12:53,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:12:53,373 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:12:53,373 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:12:53,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:53,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:12:53,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:12:53,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2020-11-30 00:12:53,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:12:53,374 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:12:53,375 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 00:12:53,382 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 00:12:53,386 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 00:12:53,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:12:53,478 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:53,484 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 00:12:53,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:53,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:53,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:53,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:53,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:53,496 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 00:12:53,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 00:12:53,551 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 00:12:53,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:53,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:53,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:53,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:53,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:53,562 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 00:12:53,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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) [2020-11-30 00:12:53,614 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 00:12:53,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:53,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:53,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:53,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:53,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:53,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:12:53,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:53,625 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:12:53,632 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:12:53,632 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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) [2020-11-30 00:12:53,641 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:12:53,641 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:12:53,641 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:12:53,642 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:53,680 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:12:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:12:53,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:12:53,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:12:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:12:53,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:12:53,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:12:53,761 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 00:12:53,779 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:12:53,781 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-30 00:12:53,848 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 33 transitions. Complement of second has 7 states. [2020-11-30 00:12:53,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:12:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:12:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-30 00:12:53,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-30 00:12:53,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:53,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-30 00:12:53,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:53,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2020-11-30 00:12:53,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:53,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. [2020-11-30 00:12:53,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:12:53,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 14 transitions. [2020-11-30 00:12:53,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-30 00:12:53,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-30 00:12:53,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2020-11-30 00:12:53,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:12:53,866 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-11-30 00:12:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2020-11-30 00:12:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-11-30 00:12:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 00:12:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-11-30 00:12:53,894 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-11-30 00:12:53,895 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-11-30 00:12:53,895 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:12:53,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2020-11-30 00:12:53,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:12:53,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:12:53,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:12:53,897 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:12:53,897 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:12:53,897 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY 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; 73#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2020-11-30 00:12:53,897 INFO L796 eck$LassoCheckResult]: Loop: 74#L12 assume !(main_~x~0 > main_~y~0); 67#L15 assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1; 68#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2020-11-30 00:12:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:53,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-30 00:12:53,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:53,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51155326] [2020-11-30 00:12:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:53,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:53,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:53,938 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:53,940 INFO L82 PathProgramCache]: Analyzing trace with hash 44836, now seen corresponding path program 1 times [2020-11-30 00:12:53,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:53,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667521964] [2020-11-30 00:12:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:53,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:53,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:53,989 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:53,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:53,990 INFO L82 PathProgramCache]: Analyzing trace with hash 29865627, now seen corresponding path program 1 times [2020-11-30 00:12:53,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:12:53,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436490946] [2020-11-30 00:12:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:12:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:54,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:12:54,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:12:54,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:12:54,131 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:12:54,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:12:54,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:12:54,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:12:54,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:12:54,132 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,132 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:12:54,132 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:12:54,132 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2020-11-30 00:12:54,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:12:54,132 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:12:54,134 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 00:12:54,141 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 00:12:54,146 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 00:12:54,316 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:12:54,317 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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) [2020-11-30 00:12:54,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:54,329 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:12:54,334 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_001380ea-0499-4f02-bf3a-f2418d33526c/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 [2020-11-30 00:12:54,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:54,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:12:54,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:12:54,373 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 [2020-11-30 00:12:54,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:12:54,398 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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 [2020-11-30 00:12:54,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:12:54,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:12:54,476 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:12:54,478 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:12:54,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:12:54,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:12:54,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:12:54,479 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:12:54,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:12:54,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:12:54,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2020-11-30 00:12:54,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:12:54,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:12:54,481 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 00:12:54,500 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 00:12:54,512 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 00:12:54,708 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:12:54,708 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/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) [2020-11-30 00:12:54,718 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 00:12:54,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:54,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:54,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:54,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:54,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:54,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,775 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 00:12:54,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:54,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:54,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:12:54,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:54,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:12:54,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:12:54,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:12:54,830 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 00:12:54,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:12:54,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:12:54,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:12:54,832 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:12:54,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:12:54,836 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-30 00:12:54,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:12:54,857 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:12:54,857 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001380ea-0499-4f02-bf3a-f2418d33526c/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:12:54,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:12:54,865 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:12:54,865 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:12:54,865 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:12:54,903 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:12:54,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:12:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:12:54,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:12:54,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:12:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:12:54,943 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:12:54,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:12:55,027 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 00:12:55,028 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-30 00:12:55,029 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-30 00:12:55,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 34 states and 50 transitions. Complement of second has 9 states. [2020-11-30 00:12:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-30 00:12:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:12:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2020-11-30 00:12:55,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2020-11-30 00:12:55,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:55,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-30 00:12:55,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:55,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-30 00:12:55,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:12:55,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2020-11-30 00:12:55,128 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:12:55,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-11-30 00:12:55,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:12:55,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:12:55,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:12:55,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:12:55,129 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:12:55,129 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:12:55,129 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:12:55,129 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:12:55,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:12:55,130 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:12:55,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:12:55,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:12:55 BoogieIcfgContainer [2020-11-30 00:12:55,136 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:12:55,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:12:55,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:12:55,137 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:12:55,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:12:52" (3/4) ... [2020-11-30 00:12:55,141 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:12:55,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:12:55,143 INFO L168 Benchmark]: Toolchain (without parser) took 3232.58 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 83.2 MB in the beginning and 84.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:55,144 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:12:55,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.78 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 90.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:55,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 111.1 MB. Free memory was 90.2 MB in the beginning and 89.2 MB in the end (delta: 985.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:12:55,146 INFO L168 Benchmark]: Boogie Preprocessor took 18.17 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 88.3 MB in the end (delta: 468.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:12:55,147 INFO L168 Benchmark]: RCFGBuilder took 269.13 ms. Allocated memory is still 111.1 MB. Free memory was 88.1 MB in the beginning and 79.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:55,148 INFO L168 Benchmark]: BuchiAutomizer took 2636.59 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 79.2 MB in the beginning and 85.4 MB in the end (delta: -6.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:55,148 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 136.3 MB. Free memory was 85.4 MB in the beginning and 84.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:55,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory is still 39.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.78 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 90.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 111.1 MB. Free memory was 90.2 MB in the beginning and 89.2 MB in the end (delta: 985.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.17 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 88.3 MB in the end (delta: 468.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.13 ms. Allocated memory is still 111.1 MB. Free memory was 88.1 MB in the beginning and 79.7 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2636.59 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 79.2 MB in the beginning and 85.4 MB in the end (delta: -6.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.59 ms. Allocated memory is still 136.3 MB. Free memory was 85.4 MB in the beginning and 84.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. 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 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 6 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf98 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq132 hnf96 smp90 dnf133 smp96 tf106 neg98 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...