./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/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 872559d907cc6e66a8bb0b951a033bd6c217aa9a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:10:01,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:10:01,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:10:01,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:10:01,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:10:01,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:10:01,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:10:01,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:10:01,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:10:01,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:10:01,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:10:01,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:10:01,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:10:01,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:10:01,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:10:01,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:10:01,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:10:01,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:10:01,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:10:01,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:10:01,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:10:01,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:10:01,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:10:01,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:10:01,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:10:01,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:10:01,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:10:01,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:10:01,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:10:01,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:10:01,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:10:01,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:10:01,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:10:01,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:10:01,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:10:01,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:10:01,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:10:01,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:10:01,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:10:01,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:10:01,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:10:01,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-16 00:10:01,533 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:10:01,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:10:01,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:10:01,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:10:01,537 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:10:01,537 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:10:01,538 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:10:01,538 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:10:01,538 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:10:01,539 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:10:01,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:10:01,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:10:01,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:10:01,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:10:01,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:10:01,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:10:01,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:10:01,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:10:01,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:10:01,543 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:10:01,543 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:10:01,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:10:01,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:10:01,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:10:01,545 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:10:01,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:10:01,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:10:01,546 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:10:01,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:10:01,548 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/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 -> 872559d907cc6e66a8bb0b951a033bd6c217aa9a [2019-11-16 00:10:01,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:10:01,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:10:01,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:10:01,643 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:10:01,643 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:10:01,645 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-16 00:10:01,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/data/217220500/5dc111e19ba7478a839a0905dd939fc4/FLAGc81fe29e7 [2019-11-16 00:10:02,337 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:10:02,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-16 00:10:02,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/data/217220500/5dc111e19ba7478a839a0905dd939fc4/FLAGc81fe29e7 [2019-11-16 00:10:02,595 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/data/217220500/5dc111e19ba7478a839a0905dd939fc4 [2019-11-16 00:10:02,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:10:02,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:10:02,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:10:02,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:10:02,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:10:02,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:02" (1/1) ... [2019-11-16 00:10:02,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3692950b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:02, skipping insertion in model container [2019-11-16 00:10:02,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:02" (1/1) ... [2019-11-16 00:10:02,619 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:10:02,656 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:10:03,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:10:03,109 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:10:03,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:10:03,258 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:10:03,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03 WrapperNode [2019-11-16 00:10:03,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:10:03,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:10:03,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:10:03,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:10:03,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:10:03,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:10:03,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:10:03,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:10:03,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... [2019-11-16 00:10:03,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:10:03,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:10:03,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:10:03,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:10:03,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae1c9069-3df1-4d44-8d19-caab4e29721c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:10:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:10:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:10:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:10:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:10:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2019-11-16 00:10:03,444 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2019-11-16 00:10:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:10:03,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:10:03,728 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:10:03,728 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:10:03,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:03 BoogieIcfgContainer [2019-11-16 00:10:03,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:10:03,731 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:10:03,731 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:10:03,735 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:10:03,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:10:03,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:10:02" (1/3) ... [2019-11-16 00:10:03,740 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a79d417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:10:03, skipping insertion in model container [2019-11-16 00:10:03,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:10:03,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:03" (2/3) ... [2019-11-16 00:10:03,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a79d417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:10:03, skipping insertion in model container [2019-11-16 00:10:03,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:10:03,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:03" (3/3) ... [2019-11-16 00:10:03,744 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-2.i [2019-11-16 00:10:03,843 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:10:03,843 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:10:03,844 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:10:03,844 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:10:03,844 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:10:03,844 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:10:03,844 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:10:03,845 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:10:03,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-16 00:10:03,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-16 00:10:03,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:10:03,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:10:03,894 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-16 00:10:03,894 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-16 00:10:03,894 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:10:03,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-16 00:10:03,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-16 00:10:03,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:10:03,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:10:03,897 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-16 00:10:03,897 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-16 00:10:03,904 INFO L791 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 6#L555true assume !(main_~length1~0 < 1); 10#L555-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 14#L560true call main_#t~ret6 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 3#strlen_recENTRYtrue [2019-11-16 00:10:03,904 INFO L793 eck$LassoCheckResult]: Loop: 3#strlen_recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 5#L548true assume !(0 == #t~mem2);havoc #t~mem2; 16#L551true call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 3#strlen_recENTRYtrue [2019-11-16 00:10:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:10:03,910 INFO L82 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2019-11-16 00:10:03,917 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:10:03,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187706758] [2019-11-16 00:10:03,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:03,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:03,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:10:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,069 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:10:04,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:10:04,071 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2019-11-16 00:10:04,071 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:10:04,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397317409] [2019-11-16 00:10:04,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:04,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:04,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:10:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,093 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:10:04,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:10:04,095 INFO L82 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2019-11-16 00:10:04,096 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:10:04,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112916389] [2019-11-16 00:10:04,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:04,096 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:10:04,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:10:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:10:04,186 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:10:04,566 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-11-16 00:10:04,800 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:10:04,801 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:10:04,802 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:10:04,802 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:10:04,803 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:10:04,803 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:10:04,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:10:04,804 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:10:04,804 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-2.i_Iteration1_Lasso [2019-11-16 00:10:04,804 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:10:04,805 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:10:04,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:04,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:10:05,424 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:10:05,430 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:10:05,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,436 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,436 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,437 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,437 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,438 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,440 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,441 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,457 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,457 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,458 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,459 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,459 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,461 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,461 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,466 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,466 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,476 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,476 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,476 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,478 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,478 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,482 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,483 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,483 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,484 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,487 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,490 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,509 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,509 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,509 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,510 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,510 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,511 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,511 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,518 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,520 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,520 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,521 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,523 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,525 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,537 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,537 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,537 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,538 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,538 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,538 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,539 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,543 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,544 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,544 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,545 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,552 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,553 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,574 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,576 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,576 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,577 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,577 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,578 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:10:05,579 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,584 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,585 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-16 00:10:05,585 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,585 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,589 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-16 00:10:05,598 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,622 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,622 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,623 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,623 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,626 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,626 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,634 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,635 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:10:05,635 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,635 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-16 00:10:05,635 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,637 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-16 00:10:05,637 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:10:05,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,657 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,657 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,657 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,657 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,661 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,661 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:10:05,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-16 00:10:05,693 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:10:05,694 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:10:05,694 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:10:05,694 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:10:05,703 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:10:05,704 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:10:05,767 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:10:05,843 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-16 00:10:05,844 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-11-16 00:10:05,846 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:10:05,848 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-16 00:10:05,852 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:10:05,853 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length strlen_rec_#in~p.base)_1, strlen_rec_#in~p.offset) = 1*v_rep(select #length strlen_rec_#in~p.base)_1 - 1*strlen_rec_#in~p.offset Supporting invariants [] [2019-11-16 00:10:05,866 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-16 00:10:05,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-16 00:10:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:10:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:10:05,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:10:05,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:10:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:10:05,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-16 00:10:05,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:10:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:10:06,009 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:10:06,011 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-16 00:10:06,130 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 30 states and 35 transitions. Complement of second has 8 states. [2019-11-16 00:10:06,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:10:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:10:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-16 00:10:06,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-16 00:10:06,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:10:06,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-16 00:10:06,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:10:06,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-16 00:10:06,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:10:06,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2019-11-16 00:10:06,154 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:10:06,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-16 00:10:06,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-16 00:10:06,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-16 00:10:06,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-16 00:10:06,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:10:06,164 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:10:06,164 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:10:06,165 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:10:06,165 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:10:06,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:10:06,165 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:10:06,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-16 00:10:06,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:10:06 BoogieIcfgContainer [2019-11-16 00:10:06,175 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:10:06,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:10:06,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:10:06,176 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:10:06,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:10:03" (3/4) ... [2019-11-16 00:10:06,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:10:06,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:10:06,188 INFO L168 Benchmark]: Toolchain (without parser) took 3586.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.4 MB in the beginning and 947.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 134.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:06,189 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:06,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:06,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:06,192 INFO L168 Benchmark]: Boogie Preprocessor took 29.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:06,193 INFO L168 Benchmark]: RCFGBuilder took 365.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:06,195 INFO L168 Benchmark]: BuchiAutomizer took 2443.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.6 MB in the end (delta: 152.0 MB). Peak memory consumption was 152.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:10:06,195 INFO L168 Benchmark]: Witness Printer took 9.21 ms. Allocated memory is still 1.2 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:10:06,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 658.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 365.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2443.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.6 MB in the end (delta: 152.0 MB). Peak memory consumption was 152.0 MB. Max. memory is 11.5 GB. * Witness Printer took 9.21 ms. Allocated memory is still 1.2 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 unknown-#length-unknown[p] + -1 * p and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 10 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital90 mio100 ax120 hnf99 lsp77 ukn63 mio100 lsp50 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...