./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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 cb74f7a1bb788b2c5a3efb057591b3727e299c90 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:16:57,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:16:57,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:16:57,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:16:57,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:16:57,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:16:57,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:16:57,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:16:57,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:16:57,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:16:57,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:16:57,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:16:57,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:16:57,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:16:57,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:16:58,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:16:58,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:16:58,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:16:58,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:16:58,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:16:58,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:16:58,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:16:58,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:16:58,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:16:58,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:16:58,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:16:58,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:16:58,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:16:58,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:16:58,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:16:58,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:16:58,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:16:58,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:16:58,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:16:58,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:16:58,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:16:58,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:16:58,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:16:58,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:16:58,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:16:58,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:16:58,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:16:58,106 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:16:58,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:16:58,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:16:58,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:16:58,109 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:16:58,109 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:16:58,109 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:16:58,109 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:16:58,110 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:16:58,110 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:16:58,111 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:16:58,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:16:58,111 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:16:58,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:16:58,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:16:58,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:16:58,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:16:58,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:16:58,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:16:58,123 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:16:58,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:16:58,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:16:58,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:16:58,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:16:58,124 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:16:58,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:16:58,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:16:58,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:16:58,124 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:16:58,125 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:16:58,126 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb74f7a1bb788b2c5a3efb057591b3727e299c90 [2020-11-28 03:16:58,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:16:58,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:16:58,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:16:58,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:16:58,445 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:16:58,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i [2020-11-28 03:16:58,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/data/6b5c2eb3f/158d130d85d64dbab5986757ee741432/FLAGa33606b6e [2020-11-28 03:16:59,003 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:16:59,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i [2020-11-28 03:16:59,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/data/6b5c2eb3f/158d130d85d64dbab5986757ee741432/FLAGa33606b6e [2020-11-28 03:16:59,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/data/6b5c2eb3f/158d130d85d64dbab5986757ee741432 [2020-11-28 03:16:59,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:16:59,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:16:59,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:59,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:16:59,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:16:59,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5969977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59, skipping insertion in model container [2020-11-28 03:16:59,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:16:59,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:16:59,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:59,772 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:16:59,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:16:59,894 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:16:59,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59 WrapperNode [2020-11-28 03:16:59,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:16:59,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:59,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:16:59,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:16:59,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:16:59,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:16:59,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:16:59,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:16:59,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... [2020-11-28 03:16:59,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:16:59,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:16:59,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:16:59,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:16:59,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:17:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:17:00,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:17:00,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:17:00,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:00,380 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:00,387 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:17:00,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00 BoogieIcfgContainer [2020-11-28 03:17:00,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:00,390 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:17:00,390 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:17:00,393 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:17:00,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:17:00,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:16:59" (1/3) ... [2020-11-28 03:17:00,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@247978ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:17:00, skipping insertion in model container [2020-11-28 03:17:00,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:17:00,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:59" (2/3) ... [2020-11-28 03:17:00,408 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@247978ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:17:00, skipping insertion in model container [2020-11-28 03:17:00,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:17:00,409 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00" (3/3) ... [2020-11-28 03:17:00,410 INFO L373 chiAutomizerObserver]: Analyzing ICFG bubblesort-alloca-1.i [2020-11-28 03:17:00,461 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:17:00,461 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:17:00,461 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:17:00,462 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:00,462 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:00,462 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:17:00,462 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:00,462 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:17:00,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:17:00,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:17:00,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:00,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:00,499 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:17:00,499 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:00,499 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:17:00,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-28 03:17:00,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:17:00,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:00,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:00,502 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:17:00,502 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:00,509 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L562true assume !(main_~array_size~0 < 1); 13#L562-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 5#L550-3true [2020-11-28 03:17:00,509 INFO L796 eck$LassoCheckResult]: Loop: 5#L550-3true assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 3#L551-3true assume !true; 4#L550-2true bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 5#L550-3true [2020-11-28 03:17:00,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:00,515 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-28 03:17:00,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:00,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639357292] [2020-11-28 03:17:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash 47218, now seen corresponding path program 1 times [2020-11-28 03:17:00,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:00,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088528574] [2020-11-28 03:17:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:00,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088528574] [2020-11-28 03:17:00,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:00,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:00,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316770926] [2020-11-28 03:17:00,734 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:17:00,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:00,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:17:00,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:17:00,756 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-11-28 03:17:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:00,765 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-11-28 03:17:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:17:00,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-11-28 03:17:00,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:17:00,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 12 transitions. [2020-11-28 03:17:00,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-28 03:17:00,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-28 03:17:00,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-11-28 03:17:00,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:17:00,778 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-11-28 03:17:00,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-11-28 03:17:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-28 03:17:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:17:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2020-11-28 03:17:00,805 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-11-28 03:17:00,805 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-11-28 03:17:00,805 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:17:00,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2020-11-28 03:17:00,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:17:00,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:00,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:00,808 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:17:00,808 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:00,809 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 34#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 35#L562 assume !(main_~array_size~0 < 1); 42#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 39#L550-3 [2020-11-28 03:17:00,809 INFO L796 eck$LassoCheckResult]: Loop: 39#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 36#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 37#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 39#L550-3 [2020-11-28 03:17:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:00,810 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-11-28 03:17:00,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:00,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412064258] [2020-11-28 03:17:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:00,871 INFO L82 PathProgramCache]: Analyzing trace with hash 46877, now seen corresponding path program 1 times [2020-11-28 03:17:00,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:00,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406809627] [2020-11-28 03:17:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:00,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818489, now seen corresponding path program 1 times [2020-11-28 03:17:00,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:00,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484932447] [2020-11-28 03:17:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:00,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:00,925 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:00,990 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:17:00,990 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:17:00,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:17:00,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:17:00,991 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:17:00,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:00,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:17:00,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:17:00,992 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration2_Loop [2020-11-28 03:17:00,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:17:00,992 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:17:01,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:17:01,217 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:01,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:17:01,223 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:17:01,235 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_bubbleSort_#t~post2=0} Honda state: {ULTIMATE.start_bubbleSort_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:01,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:17:01,274 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:17:01,279 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_1=1} Honda state: {v_rep~unnamed0~0~P_PID_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:01,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:17:01,326 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:17:01,331 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_1=2} Honda state: {v_rep~unnamed0~0~P_PGID_1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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 [2020-11-28 03:17:01,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:17:01,376 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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 [2020-11-28 03:17:01,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:17:01,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:17:01,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:17:01,473 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:17:01,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:17:01,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:17:01,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:17:01,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:17:01,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:17:01,474 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:17:01,474 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration2_Loop [2020-11-28 03:17:01,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:17:01,475 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:17:01,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:01,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:17:01,610 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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 [2020-11-28 03:17:01,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:01,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:01,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:01,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:01,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:01,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:01,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:01,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:01,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:01,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:01,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:01,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:01,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:01,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:01,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:01,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:01,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:17:01,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:17:01,671 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:01,702 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:17:01,702 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:17:01,702 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:17:01,703 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~i~0) = 2*ULTIMATE.start_bubbleSort_~i~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:01,739 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:17:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:01,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:17:01,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:01,797 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:17:01,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:01,818 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:17:01,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 03:17:01,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2020-11-28 03:17:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:17:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-11-28 03:17:01,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2020-11-28 03:17:01,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:01,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-28 03:17:01,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:01,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2020-11-28 03:17:01,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:01,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2020-11-28 03:17:01,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:01,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 20 transitions. [2020-11-28 03:17:01,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:17:01,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-28 03:17:01,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2020-11-28 03:17:01,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:01,876 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2020-11-28 03:17:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2020-11-28 03:17:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-28 03:17:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:17:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2020-11-28 03:17:01,881 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-11-28 03:17:01,882 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-11-28 03:17:01,882 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:17:01,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2020-11-28 03:17:01,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:01,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:01,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:01,885 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:17:01,885 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:01,886 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 104#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 105#L562 assume !(main_~array_size~0 < 1); 111#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 108#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 99#L551-3 [2020-11-28 03:17:01,886 INFO L796 eck$LassoCheckResult]: Loop: 99#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 100#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 109#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 99#L551-3 [2020-11-28 03:17:01,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:01,887 INFO L82 PathProgramCache]: Analyzing trace with hash 28695756, now seen corresponding path program 1 times [2020-11-28 03:17:01,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:01,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99979826] [2020-11-28 03:17:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:01,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:01,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:01,927 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:01,928 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2020-11-28 03:17:01,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:01,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583967926] [2020-11-28 03:17:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:01,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:01,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:01,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:01,979 INFO L82 PathProgramCache]: Analyzing trace with hash 176800017, now seen corresponding path program 1 times [2020-11-28 03:17:01,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:01,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933494326] [2020-11-28 03:17:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:02,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:02,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:02,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:02,280 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-28 03:17:02,364 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:17:02,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:17:02,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:17:02,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:17:02,364 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:17:02,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:02,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:17:02,364 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:17:02,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration3_Lasso [2020-11-28 03:17:02,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:17:02,365 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:17:02,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,582 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-11-28 03:17:02,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:02,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:03,100 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:17:03,100 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:03,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,110 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 [2020-11-28 03:17:03,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:03,145 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:03,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:03,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:03,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:03,291 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:03,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:03,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:03,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:03,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:03,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:03,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:03,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:03,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:03,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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 [2020-11-28 03:17:03,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:03,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:03,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:03,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:03,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:03,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:03,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:03,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:03,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:03,641 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:17:03,719 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-11-28 03:17:03,719 INFO L444 ModelExtractionUtils]: 11 out of 37 variables were initially zero. Simplification set additionally 21 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:03,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:03,733 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:17:03,733 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:17:03,734 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~j~0, v_rep(select #length ULTIMATE.start_bubbleSort_~numbers.base)_1) = -16*ULTIMATE.start_bubbleSort_~j~0 + 9*v_rep(select #length ULTIMATE.start_bubbleSort_~numbers.base)_1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_1 - 2*ULTIMATE.start_bubbleSort_~i~0 >= 0] [2020-11-28 03:17:03,785 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-11-28 03:17:03,792 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:17:03,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:03,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 03:17:03,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:03,920 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2020-11-28 03:17:03,920 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:17:03,931 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:17:03,936 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:17:03,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:28 [2020-11-28 03:17:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:04,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 03:17:04,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:04,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-11-28 03:17:04,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-11-28 03:17:04,160 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 8. Second operand 5 states. Result 28 states and 41 transitions. Complement of second has 9 states. [2020-11-28 03:17:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:17:04,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2020-11-28 03:17:04,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 03:17:04,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:04,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-28 03:17:04,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:04,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-28 03:17:04,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:04,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 41 transitions. [2020-11-28 03:17:04,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 18 states and 26 transitions. [2020-11-28 03:17:04,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 03:17:04,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:17:04,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-11-28 03:17:04,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:04,167 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-11-28 03:17:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-11-28 03:17:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2020-11-28 03:17:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:17:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2020-11-28 03:17:04,169 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-28 03:17:04,171 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-28 03:17:04,172 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:17:04,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-11-28 03:17:04,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:04,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:04,175 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:04,175 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:04,175 INFO L794 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 222#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 223#L562 assume !(main_~array_size~0 < 1); 232#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 229#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 226#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 220#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 221#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 224#L551-3 [2020-11-28 03:17:04,175 INFO L796 eck$LassoCheckResult]: Loop: 224#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 225#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 230#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 224#L551-3 [2020-11-28 03:17:04,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,176 INFO L82 PathProgramCache]: Analyzing trace with hash 176798328, now seen corresponding path program 2 times [2020-11-28 03:17:04,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179369415] [2020-11-28 03:17:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:04,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179369415] [2020-11-28 03:17:04,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:04,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:17:04,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777986369] [2020-11-28 03:17:04,244 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:17:04,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,244 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 2 times [2020-11-28 03:17:04,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493293112] [2020-11-28 03:17:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,274 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:04,382 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-11-28 03:17:04,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:04,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:17:04,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:17:04,416 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-11-28 03:17:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:04,467 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-11-28 03:17:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:17:04,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-11-28 03:17:04,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 26 transitions. [2020-11-28 03:17:04,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:17:04,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:17:04,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-11-28 03:17:04,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:04,470 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-28 03:17:04,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-11-28 03:17:04,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2020-11-28 03:17:04,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 03:17:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-11-28 03:17:04,473 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-28 03:17:04,473 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-28 03:17:04,473 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:17:04,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2020-11-28 03:17:04,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,474 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:04,474 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:04,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:04,475 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:04,475 INFO L794 eck$LassoCheckResult]: Stem: 275#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 272#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 273#L562 assume !(main_~array_size~0 < 1); 278#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 274#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 270#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 271#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 277#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 279#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 266#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 267#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 268#L551-3 [2020-11-28 03:17:04,475 INFO L796 eck$LassoCheckResult]: Loop: 268#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 269#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 276#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 268#L551-3 [2020-11-28 03:17:04,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1421271829, now seen corresponding path program 1 times [2020-11-28 03:17:04,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360751413] [2020-11-28 03:17:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:04,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,506 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 3 times [2020-11-28 03:17:04,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725827628] [2020-11-28 03:17:04,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,519 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1321478696, now seen corresponding path program 1 times [2020-11-28 03:17:04,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193087454] [2020-11-28 03:17:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:04,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193087454] [2020-11-28 03:17:04,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641744291] [2020-11-28 03:17:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:04,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:17:04,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:04,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:17:04,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-11-28 03:17:04,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439211937] [2020-11-28 03:17:04,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:04,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:17:04,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:17:04,797 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand 9 states. [2020-11-28 03:17:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:04,858 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-11-28 03:17:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:17:04,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-11-28 03:17:04,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 25 states and 34 transitions. [2020-11-28 03:17:04,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-28 03:17:04,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 03:17:04,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-11-28 03:17:04,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:04,861 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-11-28 03:17:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-11-28 03:17:04,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-11-28 03:17:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 03:17:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-11-28 03:17:04,864 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-11-28 03:17:04,864 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-11-28 03:17:04,864 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:17:04,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-11-28 03:17:04,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:04,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:04,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:04,865 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:04,865 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:04,865 INFO L794 eck$LassoCheckResult]: Stem: 374#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 366#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 367#L562 assume !(main_~array_size~0 < 1); 380#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 375#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 376#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 378#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 379#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 370#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 371#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 382#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 381#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 372#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 373#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 368#L551-3 [2020-11-28 03:17:04,865 INFO L796 eck$LassoCheckResult]: Loop: 368#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 369#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 377#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 368#L551-3 [2020-11-28 03:17:04,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1373641048, now seen corresponding path program 2 times [2020-11-28 03:17:04,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725839825] [2020-11-28 03:17:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:04,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,916 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 4 times [2020-11-28 03:17:04,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605649328] [2020-11-28 03:17:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:04,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:04,930 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash -307910395, now seen corresponding path program 2 times [2020-11-28 03:17:04,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:04,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836939163] [2020-11-28 03:17:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:05,226 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:05,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836939163] [2020-11-28 03:17:05,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445505751] [2020-11-28 03:17:05,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:05,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:17:05,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:17:05,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:17:05,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:05,402 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-11-28 03:17:05,402 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2020-11-28 03:17:05,404 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:17:05,408 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:17:05,408 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:17:05,408 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:3 [2020-11-28 03:17:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:17:05,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:17:05,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2020-11-28 03:17:05,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851110636] [2020-11-28 03:17:05,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:05,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:17:05,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:17:05,550 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 13 states. [2020-11-28 03:17:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:05,687 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-11-28 03:17:05,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:17:05,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2020-11-28 03:17:05,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 03:17:05,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 50 transitions. [2020-11-28 03:17:05,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-28 03:17:05,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-28 03:17:05,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2020-11-28 03:17:05,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:05,692 INFO L691 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-11-28 03:17:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2020-11-28 03:17:05,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2020-11-28 03:17:05,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-28 03:17:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2020-11-28 03:17:05,696 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-28 03:17:05,696 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-28 03:17:05,696 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 03:17:05,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2020-11-28 03:17:05,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:05,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:05,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:05,701 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:05,703 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:05,704 INFO L794 eck$LassoCheckResult]: Stem: 496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 488#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 489#L562 assume !(main_~array_size~0 < 1); 504#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 497#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 498#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 510#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 506#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 492#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 493#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 502#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 509#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 494#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 495#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 505#L551-3 [2020-11-28 03:17:05,704 INFO L796 eck$LassoCheckResult]: Loop: 505#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 513#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 501#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 505#L551-3 [2020-11-28 03:17:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:05,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1371794006, now seen corresponding path program 3 times [2020-11-28 03:17:05,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:05,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969021604] [2020-11-28 03:17:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:05,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:05,773 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 5 times [2020-11-28 03:17:05,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:05,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886658212] [2020-11-28 03:17:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,792 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:05,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:05,793 INFO L82 PathProgramCache]: Analyzing trace with hash 501436231, now seen corresponding path program 4 times [2020-11-28 03:17:05,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:05,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51745845] [2020-11-28 03:17:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:05,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:05,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:06,472 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2020-11-28 03:17:06,590 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-28 03:17:06,593 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:17:06,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:17:06,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:17:06,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:17:06,593 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:17:06,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:06,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:17:06,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:17:06,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration7_Lasso [2020-11-28 03:17:06,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:17:06,593 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:17:06,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,875 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-11-28 03:17:06,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:06,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:07,156 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-11-28 03:17:07,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:17:07,415 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:07,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:07,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:07,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/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) [2020-11-28 03:17:07,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:07,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:07,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:07,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:07,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:07,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:07,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:07,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:07,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:07,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:07,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:07,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:07,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:07,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:07,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:07,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:07,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:17:07,748 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2020-11-28 03:17:07,748 INFO L444 ModelExtractionUtils]: 18 out of 37 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:07,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:17:07,753 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:17:07,753 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:17:07,753 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~j~0) = -2*ULTIMATE.start_bubbleSort_~j~0 + 3 Supporting invariants [-1*ULTIMATE.start_bubbleSort_~i~0 + 1 >= 0] [2020-11-28 03:17:07,795 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-28 03:17:07,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:07,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:17:07,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:07,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:17:07,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:07,948 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-28 03:17:07,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-11-28 03:17:07,975 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 27 states and 36 transitions. Complement of second has 3 states. [2020-11-28 03:17:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:17:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-11-28 03:17:07,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 03:17:07,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:07,977 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:17:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:08,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:17:08,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:08,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:17:08,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:08,210 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-28 03:17:08,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-11-28 03:17:08,231 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 27 states and 36 transitions. Complement of second has 3 states. [2020-11-28 03:17:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:17:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-11-28 03:17:08,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 03:17:08,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:08,233 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:17:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:08,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:17:08,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:08,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:17:08,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:08,366 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-28 03:17:08,366 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-11-28 03:17:08,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 84 states and 119 transitions. Complement of second has 13 states. [2020-11-28 03:17:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-28 03:17:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:17:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 44 transitions. [2020-11-28 03:17:08,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 03:17:08,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:08,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-28 03:17:08,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:08,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-28 03:17:08,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:08,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 119 transitions. [2020-11-28 03:17:08,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:08,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 44 states and 59 transitions. [2020-11-28 03:17:08,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-28 03:17:08,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-28 03:17:08,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 59 transitions. [2020-11-28 03:17:08,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:17:08,682 INFO L691 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2020-11-28 03:17:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 59 transitions. [2020-11-28 03:17:08,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-11-28 03:17:08,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-28 03:17:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2020-11-28 03:17:08,685 INFO L714 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-11-28 03:17:08,685 INFO L594 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-11-28 03:17:08,685 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-28 03:17:08,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2020-11-28 03:17:08,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:17:08,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:17:08,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:17:08,687 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:08,687 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:17:08,687 INFO L794 eck$LassoCheckResult]: Stem: 917#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 915#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 916#L562 assume !(main_~array_size~0 < 1); 925#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 918#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 919#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 939#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 924#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 938#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 937#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 926#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 911#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 912#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5; 931#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 927#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 928#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 920#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 909#L551-3 [2020-11-28 03:17:08,687 INFO L796 eck$LassoCheckResult]: Loop: 909#L551-3 assume !!(bubbleSort_~j~0 <= bubbleSort_~i~0);call bubbleSort_#t~mem4 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);call bubbleSort_#t~mem5 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 910#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;havoc bubbleSort_#t~mem5;call bubbleSort_#t~mem6 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);bubbleSort_~temp~0 := bubbleSort_#t~mem6;havoc bubbleSort_#t~mem6;call bubbleSort_#t~mem7 := read~int(bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4);call write~int(bubbleSort_#t~mem7, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * (bubbleSort_~j~0 - 1), 4);havoc bubbleSort_#t~mem7;call write~int(bubbleSort_~temp~0, bubbleSort_~numbers.base, bubbleSort_~numbers.offset + 4 * bubbleSort_~j~0, 4); 922#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 909#L551-3 [2020-11-28 03:17:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:08,687 INFO L82 PathProgramCache]: Analyzing trace with hash 553598583, now seen corresponding path program 5 times [2020-11-28 03:17:08,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:08,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799276549] [2020-11-28 03:17:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:08,721 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 6 times [2020-11-28 03:17:08,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:08,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719392389] [2020-11-28 03:17:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash -419005562, now seen corresponding path program 6 times [2020-11-28 03:17:08,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156125317] [2020-11-28 03:17:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:08,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:08,794 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:09,478 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 118 [2020-11-28 03:17:09,566 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:17:09,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:17:09,567 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:17:09,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:17:09,567 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:17:09,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:09,567 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:17:09,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:17:09,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration8_Lasso [2020-11-28 03:17:09,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:17:09,567 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:17:09,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:09,916 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-11-28 03:17:10,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:10,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:17:10,339 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:17:10,339 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:10,421 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,489 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 [2020-11-28 03:17:10,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:17:10,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:17:10,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:17:10,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:17:10,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:10,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:17:10,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:17:10,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:17:10,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:17:10,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:17:10,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:17:10,770 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:17:10,839 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-11-28 03:17:10,839 INFO L444 ModelExtractionUtils]: 15 out of 31 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1a074e1-dd6e-4b91-aa2c-bc102cb97cc4/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:17:10,842 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:17:10,846 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:17:10,846 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:17:10,846 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~numbers.offset, ULTIMATE.start_bubbleSort_~j~0, v_rep(select #length ULTIMATE.start_bubbleSort_~numbers.base)_3) = -1*ULTIMATE.start_bubbleSort_~numbers.offset - 4*ULTIMATE.start_bubbleSort_~j~0 + 1*v_rep(select #length ULTIMATE.start_bubbleSort_~numbers.base)_3 Supporting invariants [] [2020-11-28 03:17:10,913 INFO L297 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2020-11-28 03:17:10,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:17:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:10,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:17:10,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:10,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:17:10,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:10,972 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:17:10,972 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-28 03:17:11,018 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 63 states and 86 transitions. Complement of second has 7 states. [2020-11-28 03:17:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:11,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:17:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-28 03:17:11,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-28 03:17:11,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:11,021 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:17:11,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:11,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:17:11,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:11,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:17:11,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:11,074 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:17:11,074 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-28 03:17:11,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 63 states and 86 transitions. Complement of second has 7 states. [2020-11-28 03:17:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:17:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-28 03:17:11,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-28 03:17:11,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:11,091 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:17:11,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:11,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:17:11,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:11,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:17:11,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:11,193 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:17:11,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-28 03:17:11,221 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 49 states and 68 transitions. Complement of second has 6 states. [2020-11-28 03:17:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:17:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:17:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-11-28 03:17:11,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-28 03:17:11,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:11,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2020-11-28 03:17:11,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:11,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 6 letters. [2020-11-28 03:17:11,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:17:11,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 68 transitions. [2020-11-28 03:17:11,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:17:11,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2020-11-28 03:17:11,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:17:11,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:17:11,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:17:11,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:17:11,225 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:17:11,225 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:17:11,225 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:17:11,225 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-28 03:17:11,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:17:11,226 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:17:11,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:17:11,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:17:11 BoogieIcfgContainer [2020-11-28 03:17:11,231 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:17:11,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:11,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:11,232 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:11,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:00" (3/4) ... [2020-11-28 03:17:11,235 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:17:11,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:11,237 INFO L168 Benchmark]: Toolchain (without parser) took 11861.82 ms. Allocated memory was 88.1 MB in the beginning and 197.1 MB in the end (delta: 109.1 MB). Free memory was 67.2 MB in the beginning and 156.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,237 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:11,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.16 ms. Allocated memory is still 88.1 MB. Free memory was 67.2 MB in the beginning and 47.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.71 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 45.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,238 INFO L168 Benchmark]: Boogie Preprocessor took 30.54 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 44.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,239 INFO L168 Benchmark]: RCFGBuilder took 395.80 ms. Allocated memory is still 88.1 MB. Free memory was 44.4 MB in the beginning and 65.1 MB in the end (delta: -20.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,239 INFO L168 Benchmark]: BuchiAutomizer took 10841.55 ms. Allocated memory was 88.1 MB in the beginning and 197.1 MB in the end (delta: 109.1 MB). Free memory was 64.7 MB in the beginning and 156.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:11,239 INFO L168 Benchmark]: Witness Printer took 4.03 ms. Allocated memory is still 197.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:11,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 69.2 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.16 ms. Allocated memory is still 88.1 MB. Free memory was 67.2 MB in the beginning and 47.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.71 ms. Allocated memory is still 88.1 MB. Free memory was 47.4 MB in the beginning and 45.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.54 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 44.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 395.80 ms. Allocated memory is still 88.1 MB. Free memory was 44.4 MB in the beginning and 65.1 MB in the end (delta: -20.7 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10841.55 ms. Allocated memory was 88.1 MB in the beginning and 197.1 MB in the end (delta: 109.1 MB). Free memory was 64.7 MB in the beginning and 156.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.03 ms. Allocated memory is still 197.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 8 terminating modules (4 trivial, 2 deterministic, 2 nondeterministic). One deterministic module has affine ranking function 2 * i + 1 and consists of 3 locations. One deterministic module has affine ranking function -16 * j + 9 * unknown-#length-unknown[numbers] and consists of 6 locations. One nondeterministic module has affine ranking function -2 * j + 3 and consists of 12 locations. One nondeterministic module has affine ranking function -1 * numbers + -4 * j + unknown-#length-unknown[numbers] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.7s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 8.6s. Construction of modules took 0.3s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 43 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 7. Nontrivial modules had stage [2, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 109 SDtfs, 144 SDslu, 136 SDs, 0 SdLazy, 228 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital141 mio100 ax147 hnf98 lsp72 ukn74 mio100 lsp74 div100 bol100 ite100 ukn100 eq170 hnf90 smp88 dnf100 smp100 tf103 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...