./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 0.2.0-69874e2 [2020-12-01 15:31:41,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:31:41,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:31:41,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:31:41,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:31:41,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:31:41,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:31:41,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:31:41,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:31:41,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:31:41,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:31:41,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:31:41,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:31:41,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:31:41,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:31:41,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:31:41,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:31:41,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:31:41,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:31:41,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:31:41,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:31:41,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:31:41,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:31:41,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:31:41,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:31:41,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:31:41,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:31:41,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:31:41,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:31:41,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:31:41,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:31:41,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:31:41,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:31:41,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:31:41,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:31:41,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:31:41,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:31:41,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:31:41,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:31:41,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:31:41,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:31:41,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 15:31:41,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:31:41,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:31:41,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:31:41,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:31:41,552 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:31:41,552 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:31:41,552 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:31:41,553 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:31:41,553 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:31:41,554 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:31:41,554 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:31:41,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:31:41,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:31:41,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:31:41,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:31:41,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:31:41,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:31:41,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:31:41,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:31:41,558 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:31:41,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:31:41,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:31:41,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:31:41,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:31:41,560 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:31:41,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:31:41,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:31:41,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:31:41,561 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:31:41,563 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:31:41,563 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb74f7a1bb788b2c5a3efb057591b3727e299c90 [2020-12-01 15:31:41,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:31:41,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:31:41,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:31:41,864 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:31:41,865 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:31:41,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i [2020-12-01 15:31:41,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/data/01909981d/bc47dd98ca9049d9a9df09df741d6e8b/FLAGf4799e4ef [2020-12-01 15:31:42,441 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:31:42,442 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/sv-benchmarks/c/termination-memory-alloca/bubblesort-alloca-1.i [2020-12-01 15:31:42,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/data/01909981d/bc47dd98ca9049d9a9df09df741d6e8b/FLAGf4799e4ef [2020-12-01 15:31:42,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/data/01909981d/bc47dd98ca9049d9a9df09df741d6e8b [2020-12-01 15:31:42,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:31:42,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:31:42,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:31:42,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:31:42,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:31:42,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:31:42" (1/1) ... [2020-12-01 15:31:42,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262c3057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:42, skipping insertion in model container [2020-12-01 15:31:42,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:31:42" (1/1) ... [2020-12-01 15:31:42,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:31:42,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:31:43,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:31:43,284 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:31:43,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:31:43,378 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:31:43,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43 WrapperNode [2020-12-01 15:31:43,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:31:43,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:31:43,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:31:43,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:31:43,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:31:43,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:31:43,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:31:43,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:31:43,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... [2020-12-01 15:31:43,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:31:43,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:31:43,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:31:43,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:31:43,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:31:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:31:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:31:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:31:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:31:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:31:43,844 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:31:43,844 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 15:31:43,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:31:43 BoogieIcfgContainer [2020-12-01 15:31:43,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:31:43,847 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:31:43,863 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:31:43,866 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:31:43,867 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:31:43,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:31:42" (1/3) ... [2020-12-01 15:31:43,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a8ede2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:31:43, skipping insertion in model container [2020-12-01 15:31:43,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:31:43,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:31:43" (2/3) ... [2020-12-01 15:31:43,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a8ede2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:31:43, skipping insertion in model container [2020-12-01 15:31:43,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:31:43,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:31:43" (3/3) ... [2020-12-01 15:31:43,871 INFO L389 chiAutomizerObserver]: Analyzing ICFG bubblesort-alloca-1.i [2020-12-01 15:31:43,957 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:31:43,957 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:31:43,958 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:31:43,958 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:31:43,958 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:31:43,958 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:31:43,958 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:31:43,959 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:31:43,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-12-01 15:31:43,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-12-01 15:31:43,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:43,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:43,997 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 15:31:43,997 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:43,997 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:31:43,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-12-01 15:31:43,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-12-01 15:31:43,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:43,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:44,000 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 15:31:44,000 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:44,007 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 [2020-12-01 15:31:44,008 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 [2020-12-01 15:31:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-12-01 15:31:44,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:44,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540256109] [2020-12-01 15:31:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,197 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:44,199 INFO L82 PathProgramCache]: Analyzing trace with hash 47218, now seen corresponding path program 1 times [2020-12-01 15:31:44,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:44,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655284413] [2020-12-01 15:31:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:44,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655284413] [2020-12-01 15:31:44,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:31:44,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:31:44,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508604814] [2020-12-01 15:31:44,245 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:31:44,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:31:44,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:31:44,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:31:44,263 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-12-01 15:31:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:31:44,268 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-12-01 15:31:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:31:44,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-12-01 15:31:44,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-12-01 15:31:44,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 12 transitions. [2020-12-01 15:31:44,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-12-01 15:31:44,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-12-01 15:31:44,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-12-01 15:31:44,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:31:44,276 INFO L692 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-12-01 15:31:44,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-12-01 15:31:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-01 15:31:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:31:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2020-12-01 15:31:44,298 INFO L715 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-12-01 15:31:44,298 INFO L595 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-12-01 15:31:44,298 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:31:44,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2020-12-01 15:31:44,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-12-01 15:31:44,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:44,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:44,301 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 15:31:44,301 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:44,301 INFO L794 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 34#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 35#L562 assume !(main_~array_size~0 < 1); 42#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 39#L550-3 [2020-12-01 15:31:44,301 INFO L796 eck$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 [2020-12-01 15:31:44,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:44,302 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-12-01 15:31:44,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:44,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386804856] [2020-12-01 15:31:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,337 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:44,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:44,338 INFO L82 PathProgramCache]: Analyzing trace with hash 46877, now seen corresponding path program 1 times [2020-12-01 15:31:44,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:44,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499586844] [2020-12-01 15:31:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:44,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:44,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1806818489, now seen corresponding path program 1 times [2020-12-01 15:31:44,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:44,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013720286] [2020-12-01 15:31:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:44,384 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:44,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:44,443 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:31:44,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:31:44,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:31:44,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:31:44,445 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:31:44,445 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:44,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:31:44,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:31:44,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration2_Loop [2020-12-01 15:31:44,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:31:44,446 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:31:44,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,611 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:31:44,612 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:44,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:31:44,625 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 [2020-12-01 15:31:44,648 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:31:44,648 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:44,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:31:44,694 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 [2020-12-01 15:31:44,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:31:44,708 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:44,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:31:44,743 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 [2020-12-01 15:31:44,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:31:44,756 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:31:44,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:31:44,799 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:31:44,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:31:44,850 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:44,901 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:31:44,904 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:31:44,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:31:44,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:31:44,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:31:44,905 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:31:44,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:44,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:31:44,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:31:44,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration2_Loop [2020-12-01 15:31:44,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:31:44,905 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:31:44,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:44,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,030 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:31:45,035 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:31:45,048 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 [2020-12-01 15:31:45,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:45,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:45,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:45,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:45,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:45,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:45,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:45,064 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:31:45,101 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 [2020-12-01 15:31:45,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:45,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:45,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:45,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:45,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:45,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:45,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:45,119 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:31:45,124 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:31:45,124 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:45,144 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:31:45,144 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:31:45,144 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:31:45,145 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 [2020-12-01 15:31:45,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:31:45,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:45,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:31:45,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:45,250 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:31:45,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:45,277 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 [2020-12-01 15:31:45,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-12-01 15:31:45,325 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. [2020-12-01 15:31:45,326 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 [2020-12-01 15:31:45,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:31:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-12-01 15:31:45,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2020-12-01 15:31:45,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:45,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2020-12-01 15:31:45,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:45,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2020-12-01 15:31:45,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:45,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2020-12-01 15:31:45,335 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:45,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 20 transitions. [2020-12-01 15:31:45,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-12-01 15:31:45,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-12-01 15:31:45,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2020-12-01 15:31:45,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:45,345 INFO L692 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2020-12-01 15:31:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2020-12-01 15:31:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-12-01 15:31:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:31:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2020-12-01 15:31:45,348 INFO L715 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-12-01 15:31:45,349 INFO L595 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-12-01 15:31:45,349 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:31:45,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2020-12-01 15:31:45,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:45,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:45,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:45,352 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-12-01 15:31:45,352 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:45,352 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 104#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 105#L562 assume !(main_~array_size~0 < 1); 111#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 108#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 99#L551-3 [2020-12-01 15:31:45,354 INFO L796 eck$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~mem5;havoc bubbleSort_#t~mem4;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 [2020-12-01 15:31:45,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:45,355 INFO L82 PathProgramCache]: Analyzing trace with hash 28695756, now seen corresponding path program 1 times [2020-12-01 15:31:45,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:45,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270648670] [2020-12-01 15:31:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,408 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2020-12-01 15:31:45,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:45,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99922510] [2020-12-01 15:31:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,461 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:45,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:45,462 INFO L82 PathProgramCache]: Analyzing trace with hash 176800017, now seen corresponding path program 1 times [2020-12-01 15:31:45,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:45,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925433200] [2020-12-01 15:31:45,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:45,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:45,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:45,810 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-12-01 15:31:45,902 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:31:45,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:31:45,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:31:45,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:31:45,902 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:31:45,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:45,903 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:31:45,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:31:45,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration3_Lasso [2020-12-01 15:31:45,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:31:45,903 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:31:45,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:45,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:46,103 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-01 15:31:46,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:46,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:46,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:46,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:46,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:31:46,578 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:46,588 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 [2020-12-01 15:31:46,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:46,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:46,592 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 [2020-12-01 15:31:46,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:46,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:31:46,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:46,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:46,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:46,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:46,713 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 [2020-12-01 15:31:46,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:46,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:46,716 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 [2020-12-01 15:31:46,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:46,754 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 [2020-12-01 15:31:46,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:46,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:46,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:46,828 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 [2020-12-01 15:31:46,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:46,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:46,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:46,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:46,896 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 [2020-12-01 15:31:46,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:46,905 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 [2020-12-01 15:31:46,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:46,960 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 [2020-12-01 15:31:46,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:46,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:46,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:46,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:46,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:46,965 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 [2020-12-01 15:31:46,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:47,027 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 [2020-12-01 15:31:47,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:47,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:47,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:47,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:47,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:47,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:47,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:47,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:47,059 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 [2020-12-01 15:31:47,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:47,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:47,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:47,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:47,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:47,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:47,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:47,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:47,089 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:47,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:47,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:47,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:47,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:47,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:47,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:47,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:47,159 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 [2020-12-01 15:31:47,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:47,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:47,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:47,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:47,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:47,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:47,213 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:31:47,316 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2020-12-01 15:31:47,316 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:47,329 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 [2020-12-01 15:31:47,345 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-12-01 15:31:47,345 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:31:47,346 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] [2020-12-01 15:31:47,394 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-12-01 15:31:47,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:31:47,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:47,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:31:47,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:47,553 INFO L382 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 [2020-12-01 15:31:47,554 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:31:47,566 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:31:47,573 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:31:47,573 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:28 [2020-12-01 15:31:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:47,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:31:47,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:47,660 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 [2020-12-01 15:31:47,660 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-12-01 15:31:47,765 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. [2020-12-01 15:31:47,766 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 [2020-12-01 15:31:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:31:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions. [2020-12-01 15:31:47,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2020-12-01 15:31:47,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:47,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2020-12-01 15:31:47,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:47,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2020-12-01 15:31:47,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:47,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 41 transitions. [2020-12-01 15:31:47,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:47,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 18 states and 26 transitions. [2020-12-01 15:31:47,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-12-01 15:31:47,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-12-01 15:31:47,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-12-01 15:31:47,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:47,774 INFO L692 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-12-01 15:31:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-12-01 15:31:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2020-12-01 15:31:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:31:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2020-12-01 15:31:47,777 INFO L715 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-12-01 15:31:47,777 INFO L595 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-12-01 15:31:47,777 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:31:47,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-12-01 15:31:47,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:47,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:47,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:47,779 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:31:47,779 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:47,779 INFO L794 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 222#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 223#L562 assume !(main_~array_size~0 < 1); 232#L562-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset, bubbleSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc bubbleSort_#t~mem4, bubbleSort_#t~mem5, bubbleSort_#t~mem6, bubbleSort_#t~mem7, bubbleSort_#t~post3, bubbleSort_#t~post2, bubbleSort_~numbers.base, bubbleSort_~numbers.offset, bubbleSort_~array_size, bubbleSort_~i~0, bubbleSort_~j~0, bubbleSort_~temp~0;bubbleSort_~numbers.base, bubbleSort_~numbers.offset := bubbleSort_#in~numbers.base, bubbleSort_#in~numbers.offset;bubbleSort_~array_size := bubbleSort_#in~array_size;havoc bubbleSort_~i~0;havoc bubbleSort_~j~0;havoc bubbleSort_~temp~0;bubbleSort_~i~0 := bubbleSort_~array_size - 1; 229#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 226#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 220#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 221#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 224#L551-3 [2020-12-01 15:31:47,779 INFO L796 eck$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~mem5;havoc bubbleSort_#t~mem4;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 [2020-12-01 15:31:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash 176798328, now seen corresponding path program 2 times [2020-12-01 15:31:47,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:47,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713154042] [2020-12-01 15:31:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:47,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713154042] [2020-12-01 15:31:47,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:31:47,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:31:47,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050882817] [2020-12-01 15:31:47,820 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:31:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:47,820 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 2 times [2020-12-01 15:31:47,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:47,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468467853] [2020-12-01 15:31:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:47,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:47,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:47,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:47,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:31:47,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:31:47,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:31:47,945 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-12-01 15:31:47,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:31:47,995 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-12-01 15:31:47,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:31:47,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-12-01 15:31:48,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:48,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 26 transitions. [2020-12-01 15:31:48,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-12-01 15:31:48,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-12-01 15:31:48,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-12-01 15:31:48,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:48,005 INFO L692 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-12-01 15:31:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-12-01 15:31:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2020-12-01 15:31:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:31:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-12-01 15:31:48,009 INFO L715 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-12-01 15:31:48,009 INFO L595 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-12-01 15:31:48,009 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:31:48,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2020-12-01 15:31:48,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:48,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:48,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:48,014 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:31:48,014 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:48,014 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~mem5;havoc bubbleSort_#t~mem4; 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 [2020-12-01 15:31:48,014 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~mem5;havoc bubbleSort_#t~mem4;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 [2020-12-01 15:31:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1421271829, now seen corresponding path program 1 times [2020-12-01 15:31:48,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362983416] [2020-12-01 15:31:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,078 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:48,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,080 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 3 times [2020-12-01 15:31:48,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543159435] [2020-12-01 15:31:48,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,155 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1321478696, now seen corresponding path program 1 times [2020-12-01 15:31:48,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546842817] [2020-12-01 15:31:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:48,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546842817] [2020-12-01 15:31:48,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8477891] [2020-12-01 15:31:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:48,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:31:48,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:48,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:31:48,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-12-01 15:31:48,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229808885] [2020-12-01 15:31:48,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:31:48,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:31:48,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:31:48,469 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand 9 states. [2020-12-01 15:31:48,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:31:48,539 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-12-01 15:31:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:31:48,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-12-01 15:31:48,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:48,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 25 states and 34 transitions. [2020-12-01 15:31:48,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-12-01 15:31:48,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-12-01 15:31:48,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-12-01 15:31:48,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:48,542 INFO L692 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-12-01 15:31:48,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-12-01 15:31:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-12-01 15:31:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-01 15:31:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-12-01 15:31:48,545 INFO L715 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-12-01 15:31:48,545 INFO L595 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-12-01 15:31:48,545 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-12-01 15:31:48,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-12-01 15:31:48,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:48,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:48,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:48,546 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:31:48,546 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:48,547 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~mem5;havoc bubbleSort_#t~mem4; 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~mem5;havoc bubbleSort_#t~mem4; 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 [2020-12-01 15:31:48,547 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~mem5;havoc bubbleSort_#t~mem4;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 [2020-12-01 15:31:48,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1373641048, now seen corresponding path program 2 times [2020-12-01 15:31:48,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605866398] [2020-12-01 15:31:48,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,576 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:48,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,577 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 4 times [2020-12-01 15:31:48,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958299434] [2020-12-01 15:31:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:48,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:48,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:48,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:48,589 INFO L82 PathProgramCache]: Analyzing trace with hash -307910395, now seen corresponding path program 2 times [2020-12-01 15:31:48,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:48,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448659448] [2020-12-01 15:31:48,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:48,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448659448] [2020-12-01 15:31:48,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942876258] [2020-12-01 15:31:48,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:48,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:31:48,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:31:48,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:31:48,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:49,006 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-12-01 15:31:49,006 INFO L382 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 [2020-12-01 15:31:49,009 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:31:49,012 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:31:49,012 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-01 15:31:49,012 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:3 [2020-12-01 15:31:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 15:31:49,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:31:49,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2020-12-01 15:31:49,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239907613] [2020-12-01 15:31:49,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:31:49,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-01 15:31:49,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:31:49,122 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 15 states. [2020-12-01 15:31:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:31:49,253 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-12-01 15:31:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:31:49,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2020-12-01 15:31:49,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:31:49,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 50 transitions. [2020-12-01 15:31:49,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-12-01 15:31:49,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-12-01 15:31:49,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2020-12-01 15:31:49,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:49,257 INFO L692 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-12-01 15:31:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2020-12-01 15:31:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2020-12-01 15:31:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 15:31:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2020-12-01 15:31:49,261 INFO L715 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-12-01 15:31:49,261 INFO L595 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-12-01 15:31:49,261 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-12-01 15:31:49,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2020-12-01 15:31:49,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:49,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:49,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:49,263 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:31:49,263 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:49,263 INFO L794 eck$LassoCheckResult]: Stem: 498#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 490#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; 491#L562 assume !(main_~array_size~0 < 1); 506#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; 499#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 500#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); 512#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 508#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 494#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); 495#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;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); 504#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 511#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 496#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 497#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 507#L551-3 [2020-12-01 15:31:49,263 INFO L796 eck$LassoCheckResult]: Loop: 507#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); 515#L552 assume bubbleSort_#t~mem4 > bubbleSort_#t~mem5;havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4;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); 503#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 507#L551-3 [2020-12-01 15:31:49,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:49,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1371794006, now seen corresponding path program 3 times [2020-12-01 15:31:49,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:49,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634440588] [2020-12-01 15:31:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,289 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:49,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:49,290 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 5 times [2020-12-01 15:31:49,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:49,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076004216] [2020-12-01 15:31:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:49,301 INFO L82 PathProgramCache]: Analyzing trace with hash 501436231, now seen corresponding path program 4 times [2020-12-01 15:31:49,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:49,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722078895] [2020-12-01 15:31:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:49,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:49,364 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:49,891 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2020-12-01 15:31:50,005 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-01 15:31:50,007 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:31:50,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:31:50,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:31:50,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:31:50,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:31:50,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:50,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:31:50,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:31:50,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration7_Lasso [2020-12-01 15:31:50,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:31:50,008 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:31:50,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,268 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-01 15:31:50,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:50,808 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:31:50,808 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:50,849 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 [2020-12-01 15:31:50,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:50,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:50,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:50,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:50,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:50,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:50,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:50,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:50,884 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 [2020-12-01 15:31:50,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:50,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:50,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:50,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:50,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:50,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:50,915 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:50,950 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 [2020-12-01 15:31:50,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:50,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:50,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:50,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:50,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:50,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:50,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:50,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:50,976 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 [2020-12-01 15:31:50,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:50,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:50,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:50,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:50,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:50,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:51,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:51,029 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 [2020-12-01 15:31:51,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:51,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:51,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:51,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:51,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:51,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:51,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:51,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:51,092 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 [2020-12-01 15:31:51,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:51,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:51,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:51,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:51,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:51,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:51,122 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:31:51,165 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-12-01 15:31:51,165 INFO L444 ModelExtractionUtils]: 21 out of 37 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:51,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:51,178 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-12-01 15:31:51,191 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:31:51,191 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] [2020-12-01 15:31:51,247 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-12-01 15:31:51,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:51,412 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 [2020-12-01 15:31:51,412 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-12-01 15:31:51,434 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. [2020-12-01 15:31:51,435 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 [2020-12-01 15:31:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:31:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-12-01 15:31:51,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 14 letters. Loop has 3 letters. [2020-12-01 15:31:51,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:51,436 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:31:51,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:51,591 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 [2020-12-01 15:31:51,592 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-12-01 15:31:51,611 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. [2020-12-01 15:31:51,612 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 [2020-12-01 15:31:51,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:31:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-12-01 15:31:51,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 14 letters. Loop has 3 letters. [2020-12-01 15:31:51,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:51,613 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:31:51,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:51,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:31:51,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:51,765 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 [2020-12-01 15:31:51,765 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 8 states. [2020-12-01 15:31:52,069 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. [2020-12-01 15:31:52,071 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 [2020-12-01 15:31:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:31:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 44 transitions. [2020-12-01 15:31:52,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 14 letters. Loop has 3 letters. [2020-12-01 15:31:52,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:52,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 17 letters. Loop has 3 letters. [2020-12-01 15:31:52,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:52,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 14 letters. Loop has 6 letters. [2020-12-01 15:31:52,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:52,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 119 transitions. [2020-12-01 15:31:52,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:52,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 44 states and 59 transitions. [2020-12-01 15:31:52,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-12-01 15:31:52,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-12-01 15:31:52,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 59 transitions. [2020-12-01 15:31:52,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:31:52,076 INFO L692 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2020-12-01 15:31:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 59 transitions. [2020-12-01 15:31:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-12-01 15:31:52,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-01 15:31:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2020-12-01 15:31:52,082 INFO L715 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-12-01 15:31:52,082 INFO L595 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-12-01 15:31:52,082 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-12-01 15:31:52,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2020-12-01 15:31:52,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:31:52,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:31:52,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:31:52,084 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:31:52,085 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:31:52,085 INFO L794 eck$LassoCheckResult]: Stem: 919#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 917#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; 918#L562 assume !(main_~array_size~0 < 1); 927#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; 920#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 921#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); 941#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 926#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 940#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~mem5;havoc bubbleSort_#t~mem4;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); 928#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 913#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); 914#L552 assume !(bubbleSort_#t~mem4 > bubbleSort_#t~mem5);havoc bubbleSort_#t~mem5;havoc bubbleSort_#t~mem4; 933#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 929#L551-3 assume !(bubbleSort_~j~0 <= bubbleSort_~i~0); 930#L550-2 bubbleSort_#t~post2 := bubbleSort_~i~0;bubbleSort_~i~0 := bubbleSort_#t~post2 - 1;havoc bubbleSort_#t~post2; 922#L550-3 assume !!(bubbleSort_~i~0 >= 0);bubbleSort_~j~0 := 1; 911#L551-3 [2020-12-01 15:31:52,085 INFO L796 eck$LassoCheckResult]: Loop: 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~mem5;havoc bubbleSort_#t~mem4;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); 924#L551-2 bubbleSort_#t~post3 := bubbleSort_~j~0;bubbleSort_~j~0 := 1 + bubbleSort_#t~post3;havoc bubbleSort_#t~post3; 911#L551-3 [2020-12-01 15:31:52,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:52,086 INFO L82 PathProgramCache]: Analyzing trace with hash 553598583, now seen corresponding path program 5 times [2020-12-01 15:31:52,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:52,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957908147] [2020-12-01 15:31:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:52,152 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 6 times [2020-12-01 15:31:52,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:52,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986182574] [2020-12-01 15:31:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,164 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:52,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:52,165 INFO L82 PathProgramCache]: Analyzing trace with hash -419005562, now seen corresponding path program 6 times [2020-12-01 15:31:52,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:31:52,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928500356] [2020-12-01 15:31:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:31:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:31:52,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:31:52,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:31:52,801 WARN L197 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 118 [2020-12-01 15:31:52,915 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-01 15:31:52,916 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:31:52,917 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:31:52,917 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:31:52,917 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:31:52,917 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:31:52,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:52,917 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:31:52,917 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:31:52,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: bubblesort-alloca-1.i_Iteration8_Lasso [2020-12-01 15:31:52,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:31:52,917 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:31:52,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:52,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:53,151 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-01 15:31:53,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:53,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:31:53,618 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:31:53,619 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:53,622 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 [2020-12-01 15:31:53,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:53,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:53,645 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:53,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:53,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:53,677 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 [2020-12-01 15:31:53,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:53,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:53,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:53,703 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 [2020-12-01 15:31:53,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:53,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:53,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:53,730 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 [2020-12-01 15:31:53,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:53,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:53,765 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 [2020-12-01 15:31:53,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:53,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:53,790 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 [2020-12-01 15:31:53,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:53,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:53,868 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 [2020-12-01 15:31:53,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:53,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:53,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:53,933 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 [2020-12-01 15:31:53,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:53,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:53,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:53,982 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 [2020-12-01 15:31:53,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:53,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:53,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:53,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:53,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:53,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:53,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:53,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:54,015 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 [2020-12-01 15:31:54,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:54,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:54,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:54,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:54,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:54,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:54,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:54,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:54,049 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 [2020-12-01 15:31:54,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:54,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:31:54,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:54,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:54,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:54,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:31:54,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:31:54,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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 [2020-12-01 15:31:54,076 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 [2020-12-01 15:31:54,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:54,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:54,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:54,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:54,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:54,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:54,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:31:54,154 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 [2020-12-01 15:31:54,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:31:54,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:31:54,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:31:54,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:31:54,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:31:54,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:31:54,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:31:54,233 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-12-01 15:31:54,234 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_c55777ce-f911-4183-b2b5-5a7a6c8bcfc3/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) [2020-12-01 15:31:54,244 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 [2020-12-01 15:31:54,264 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:31:54,265 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:31:54,265 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_bubbleSort_~numbers.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3, ULTIMATE.start_bubbleSort_~j~0) = -1*ULTIMATE.start_bubbleSort_~numbers.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3 - 4*ULTIMATE.start_bubbleSort_~j~0 Supporting invariants [] [2020-12-01 15:31:54,327 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2020-12-01 15:31:54,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:31:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:54,430 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-12-01 15:31:54,430 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-12-01 15:31:54,478 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 63 states and 86 transitions. Complement of second has 8 states. [2020-12-01 15:31:54,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:31:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:31:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-12-01 15:31:54,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2020-12-01 15:31:54,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:54,479 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:31:54,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:54,633 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-12-01 15:31:54,633 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-12-01 15:31:54,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 63 states and 86 transitions. Complement of second has 8 states. [2020-12-01 15:31:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:31:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:31:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-12-01 15:31:54,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2020-12-01 15:31:54,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:54,677 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:31:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:31:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:31:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:31:54,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:31:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:31:54,776 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-12-01 15:31:54,776 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-12-01 15:31:54,814 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 49 states and 68 transitions. Complement of second has 7 states. [2020-12-01 15:31:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:31:54,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:31:54,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-12-01 15:31:54,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 17 letters. Loop has 3 letters. [2020-12-01 15:31:54,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:54,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2020-12-01 15:31:54,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:54,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 17 letters. Loop has 6 letters. [2020-12-01 15:31:54,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:31:54,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 68 transitions. [2020-12-01 15:31:54,819 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:31:54,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2020-12-01 15:31:54,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:31:54,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:31:54,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:31:54,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:31:54,820 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:31:54,820 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:31:54,821 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:31:54,821 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-12-01 15:31:54,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:31:54,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:31:54,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:31:54,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:31:54 BoogieIcfgContainer [2020-12-01 15:31:54,827 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:31:54,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:31:54,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:31:54,828 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:31:54,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:31:43" (3/4) ... [2020-12-01 15:31:54,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:31:54,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:31:54,833 INFO L168 Benchmark]: Toolchain (without parser) took 12062.26 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 76.4 MB in the beginning and 150.9 MB in the end (delta: -74.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:54,833 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:31:54,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.09 ms. Allocated memory is still 102.8 MB. Free memory was 76.2 MB in the beginning and 69.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:54,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.20 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 67.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:31:54,834 INFO L168 Benchmark]: Boogie Preprocessor took 26.53 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 66.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:54,835 INFO L168 Benchmark]: RCFGBuilder took 392.21 ms. Allocated memory is still 102.8 MB. Free memory was 66.4 MB in the beginning and 52.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:54,835 INFO L168 Benchmark]: BuchiAutomizer took 10980.41 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 52.7 MB in the beginning and 151.9 MB in the end (delta: -99.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:31:54,836 INFO L168 Benchmark]: Witness Printer took 4.17 ms. Allocated memory is still 218.1 MB. Free memory was 151.9 MB in the beginning and 150.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:31:54,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.09 ms. Allocated memory is still 102.8 MB. Free memory was 76.2 MB in the beginning and 69.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.20 ms. Allocated memory is still 102.8 MB. Free memory was 69.4 MB in the beginning and 67.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.53 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 66.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 392.21 ms. Allocated memory is still 102.8 MB. Free memory was 66.4 MB in the beginning and 52.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10980.41 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 52.7 MB in the beginning and 151.9 MB in the end (delta: -99.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.17 ms. Allocated memory is still 218.1 MB. Free memory was 151.9 MB in the beginning and 150.9 MB in the end (delta: 1.0 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 + unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -4 * j and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.8s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 8.5s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. 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: 106 SDtfs, 141 SDslu, 142 SDs, 0 SdLazy, 246 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital139 mio100 ax150 hnf99 lsp72 ukn74 mio100 lsp74 div100 bol100 ite100 ukn100 eq170 hnf90 smp87 dnf100 smp100 tf103 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...