./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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 0.1.24-678e011 [2019-11-20 04:06:46,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:06:46,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:06:46,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:06:46,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:06:46,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:06:46,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:06:46,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:06:46,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:06:46,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:06:46,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:06:46,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:06:46,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:06:46,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:06:46,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:06:46,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:06:46,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:06:46,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:06:46,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:06:46,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:06:46,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:06:46,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:06:46,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:06:46,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:06:46,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:06:46,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:06:46,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:06:46,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:06:46,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:06:46,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:06:46,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:06:46,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:06:46,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:06:46,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:06:46,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:06:46,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:06:46,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:06:46,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:06:46,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:06:46,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:06:46,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:06:46,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 04:06:46,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:06:46,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:06:46,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:06:46,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:06:46,246 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:06:46,246 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 04:06:46,246 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 04:06:46,247 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 04:06:46,247 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 04:06:46,247 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 04:06:46,247 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 04:06:46,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:06:46,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:06:46,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:06:46,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:06:46,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 04:06:46,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 04:06:46,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 04:06:46,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:06:46,250 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 04:06:46,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:06:46,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 04:06:46,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:06:46,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:06:46,251 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 04:06:46,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:06:46,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:06:46,251 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 04:06:46,253 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 04:06:46,253 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_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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 [2019-11-20 04:06:46,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:06:46,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:06:46,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:06:46,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:06:46,445 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:06:46,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-20 04:06:46,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/data/18b373939/e73c3dfa5f054937a4d00ae728b0adcd/FLAG43b42848f [2019-11-20 04:06:46,940 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:06:46,941 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-20 04:06:46,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/data/18b373939/e73c3dfa5f054937a4d00ae728b0adcd/FLAG43b42848f [2019-11-20 04:06:46,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/data/18b373939/e73c3dfa5f054937a4d00ae728b0adcd [2019-11-20 04:06:46,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:06:46,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:06:46,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:06:46,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:06:46,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:06:46,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:06:46" (1/1) ... [2019-11-20 04:06:46,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd987fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:46, skipping insertion in model container [2019-11-20 04:06:46,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:06:46" (1/1) ... [2019-11-20 04:06:46,982 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:06:47,018 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:06:47,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:06:47,366 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:06:47,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:06:47,457 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:06:47,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47 WrapperNode [2019-11-20 04:06:47,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:06:47,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:06:47,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:06:47,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:06:47,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:06:47,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:06:47,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:06:47,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:06:47,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... [2019-11-20 04:06:47,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:06:47,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:06:47,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:06:47,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:06:47,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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 [2019-11-20 04:06:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:06:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:06:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:06:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:06:47,587 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2019-11-20 04:06:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2019-11-20 04:06:47,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:06:47,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:06:47,783 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:06:47,784 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 04:06:47,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:06:47 BoogieIcfgContainer [2019-11-20 04:06:47,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:06:47,785 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 04:06:47,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 04:06:47,789 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 04:06:47,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:06:47,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 04:06:46" (1/3) ... [2019-11-20 04:06:47,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350d8ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:06:47, skipping insertion in model container [2019-11-20 04:06:47,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:06:47,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:06:47" (2/3) ... [2019-11-20 04:06:47,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350d8ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:06:47, skipping insertion in model container [2019-11-20 04:06:47,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:06:47,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:06:47" (3/3) ... [2019-11-20 04:06:47,794 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-2.i [2019-11-20 04:06:47,834 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 04:06:47,834 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 04:06:47,835 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 04:06:47,835 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:06:47,835 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:06:47,835 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 04:06:47,835 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:06:47,836 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 04:06:47,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-20 04:06:47,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:06:47,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:06:47,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:06:47,882 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 04:06:47,882 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:06:47,882 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 04:06:47,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-20 04:06:47,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:06:47,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:06:47,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:06:47,884 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 04:06:47,884 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:06:47,891 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 6#L555true assume !(main_~length1~0 < 1); 10#L555-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 14#L560true call main_#t~ret6 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 3#strlen_recENTRYtrue [2019-11-20 04:06:47,891 INFO L796 eck$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 [2019-11-20 04:06:47,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:06:47,896 INFO L82 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2019-11-20 04:06:47,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:06:47,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988944048] [2019-11-20 04:06:47,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:06:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:06:48,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:06:48,033 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2019-11-20 04:06:48,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:06:48,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026485145] [2019-11-20 04:06:48,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:06:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:06:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:06:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2019-11-20 04:06:48,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:06:48,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336536742] [2019-11-20 04:06:48,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:06:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:06:48,099 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:06:48,388 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-11-20 04:06:48,583 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:06:48,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:06:48,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:06:48,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:06:48,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:06:48,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:48,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:06:48,586 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:06:48,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-2.i_Iteration1_Lasso [2019-11-20 04:06:48,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:06:48,587 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:06:48,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:48,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:06:49,016 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:06:49,022 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,030 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 [2019-11-20 04:06:49,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,058 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 [2019-11-20 04:06:49,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,085 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 [2019-11-20 04:06:49,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,105 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 [2019-11-20 04:06:49,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:06:49,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,129 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 [2019-11-20 04:06:49,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,153 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 [2019-11-20 04:06:49,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:06:49,168 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,184 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 [2019-11-20 04:06:49,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,187 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 [2019-11-20 04:06:49,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,209 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 [2019-11-20 04:06:49,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,239 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 [2019-11-20 04:06:49,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,267 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 [2019-11-20 04:06:49,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,289 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 [2019-11-20 04:06:49,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,314 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 [2019-11-20 04:06:49,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,337 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 [2019-11-20 04:06:49,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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 [2019-11-20 04:06:49,365 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 [2019-11-20 04:06:49,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,385 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 Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/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) [2019-11-20 04:06:49,400 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 [2019-11-20 04:06:49,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,425 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 [2019-11-20 04:06:49,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:06:49,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,449 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 [2019-11-20 04:06:49,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:06:49,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,489 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 [2019-11-20 04:06:49,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:06:49,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,533 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 [2019-11-20 04:06:49,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:06:49,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,535 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 04:06:49,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,536 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 04:06:49,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:06:49,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,565 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 [2019-11-20 04:06:49,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,586 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 [2019-11-20 04:06:49,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:06:49,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:06:49,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:06:49,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:06:49,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:06:49,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:06:49,688 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-20 04:06:49,688 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ba4c773-d6f6-426d-aa9f-5c446fe96192/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:06:49,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:06:49,748 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:06:49,748 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:06:49,749 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 [] [2019-11-20 04:06:49,770 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-20 04:06:49,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 04:06:49,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:06:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:06:49,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:06:49,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:06:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:06:49,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:06:49,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:06:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:06:49,873 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 [2019-11-20 04:06:49,874 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-20 04:06:49,952 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. [2019-11-20 04:06:49,953 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 [2019-11-20 04:06:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 04:06:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-20 04:06:49,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 04:06:49,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:06:49,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-20 04:06:49,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:06:49,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-20 04:06:49,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:06:49,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2019-11-20 04:06:49,964 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:06:49,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-20 04:06:49,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 04:06:49,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 04:06:49,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 04:06:49,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:06:49,968 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:06:49,969 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:06:49,969 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:06:49,969 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 04:06:49,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:06:49,969 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:06:49,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 04:06:49,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 04:06:49 BoogieIcfgContainer [2019-11-20 04:06:49,975 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 04:06:49,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:06:49,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:06:49,976 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:06:49,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:06:47" (3/4) ... [2019-11-20 04:06:49,979 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:06:49,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:06:49,985 INFO L168 Benchmark]: Toolchain (without parser) took 3020.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:06:49,987 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 04:06:49,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:06:49,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.29 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. [2019-11-20 04:06:49,993 INFO L168 Benchmark]: Boogie Preprocessor took 21.98 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:06:49,994 INFO L168 Benchmark]: RCFGBuilder took 260.00 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:06:49,995 INFO L168 Benchmark]: BuchiAutomizer took 2189.67 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:06:49,995 INFO L168 Benchmark]: Witness Printer took 4.53 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. [2019-11-20 04:06:50,002 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 492.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.29 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 21.98 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 260.00 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2189.67 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 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. * 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 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 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: inital89 mio100 ax120 hnf99 lsp77 ukn63 mio100 lsp51 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...