./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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 7a61d79c4ca9451b26ba6dc1b90600e9ebfec9cf .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:17:21,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:17:21,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:17:21,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:17:21,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:17:21,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:17:21,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:17:21,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:17:21,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:17:21,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:17:21,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:17:21,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:17:21,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:17:21,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:17:21,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:17:21,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:17:21,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:17:21,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:17:21,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:17:21,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:17:21,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:17:21,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:17:21,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:17:21,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:17:21,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:17:21,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:17:21,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:17:21,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:17:21,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:17:21,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:17:21,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:17:21,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:17:21,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:17:21,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:17:21,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:17:21,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:17:21,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:17:21,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:17:21,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:17:21,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:17:21,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:17:21,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:17:21,580 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:17:21,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:17:21,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:17:21,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:17:21,583 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:17:21,583 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:17:21,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:17:21,584 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:17:21,584 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:17:21,584 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:17:21,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:17:21,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:17:21,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:17:21,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:17:21,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:17:21,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:17:21,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:17:21,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:17:21,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:17:21,588 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:17:21,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:17:21,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:17:21,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:17:21,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:17:21,590 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:17:21,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:17:21,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:17:21,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:17:21,591 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:17:21,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:17:21,592 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_fb19e8f0-f2ad-475d-832b-04c2b3210259/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a61d79c4ca9451b26ba6dc1b90600e9ebfec9cf [2020-11-29 19:17:21,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:17:22,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:17:22,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:17:22,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:17:22,014 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:17:22,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2020-11-29 19:17:22,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/data/508cf8d51/300427f3feed422abedb1b30f5488fd5/FLAG298981e5f [2020-11-29 19:17:22,998 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:17:22,999 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2020-11-29 19:17:23,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/data/508cf8d51/300427f3feed422abedb1b30f5488fd5/FLAG298981e5f [2020-11-29 19:17:23,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/data/508cf8d51/300427f3feed422abedb1b30f5488fd5 [2020-11-29 19:17:23,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:17:23,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:17:23,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:17:23,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:17:23,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:17:23,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3feff18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23, skipping insertion in model container [2020-11-29 19:17:23,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:17:23,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:17:23,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:17:23,786 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:17:23,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:17:23,910 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:17:23,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23 WrapperNode [2020-11-29 19:17:23,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:17:23,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:17:23,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:17:23,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:17:23,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:17:23,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:17:23,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:17:23,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:17:23,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... [2020-11-29 19:17:23,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:17:23,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:17:23,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:17:23,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:17:24,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:17:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:17:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:17:24,653 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:17:24,655 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:17:24,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:17:24 BoogieIcfgContainer [2020-11-29 19:17:24,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:17:24,661 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:17:24,661 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:17:24,665 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:17:24,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:17:24,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:17:23" (1/3) ... [2020-11-29 19:17:24,668 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ae271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:17:24, skipping insertion in model container [2020-11-29 19:17:24,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:17:24,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:17:23" (2/3) ... [2020-11-29 19:17:24,670 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75ae271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:17:24, skipping insertion in model container [2020-11-29 19:17:24,670 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:17:24,670 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:17:24" (3/3) ... [2020-11-29 19:17:24,673 INFO L373 chiAutomizerObserver]: Analyzing ICFG selectionsort-alloca-2.i [2020-11-29 19:17:24,758 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:17:24,758 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:17:24,758 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:17:24,758 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:17:24,758 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:17:24,759 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:17:24,759 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:17:24,759 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:17:24,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 19:17:24,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 19:17:24,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:24,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:24,811 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:17:24,811 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:17:24,811 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:17:24,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 19:17:24,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 19:17:24,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:24,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:24,818 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:17:24,818 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:17:24,828 INFO L794 eck$LassoCheckResult]: Stem: 10#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; 7#L566true assume !(main_~array_size~0 < 1); 9#L566-2true 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;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 4#L550-3true [2020-11-29 19:17:24,829 INFO L796 eck$LassoCheckResult]: Loop: 4#L550-3true assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 12#L554-3true assume !true; 14#L554-4true call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 3#L550-2true SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 4#L550-3true [2020-11-29 19:17:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:24,838 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-29 19:17:24,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:24,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013435576] [2020-11-29 19:17:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1463796, now seen corresponding path program 1 times [2020-11-29 19:17:25,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507868450] [2020-11-29 19:17:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:25,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507868450] [2020-11-29 19:17:25,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:17:25,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:17:25,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832016269] [2020-11-29 19:17:25,254 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:17:25,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:17:25,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:17:25,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:17:25,281 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-29 19:17:25,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:17:25,291 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-11-29 19:17:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:17:25,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-11-29 19:17:25,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 19:17:25,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2020-11-29 19:17:25,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-29 19:17:25,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 19:17:25,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-29 19:17:25,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:17:25,309 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:17:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-29 19:17:25,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 19:17:25,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 19:17:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-29 19:17:25,347 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:17:25,348 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-29 19:17:25,348 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:17:25,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-29 19:17:25,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 19:17:25,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:25,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:25,353 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:17:25,354 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 19:17:25,354 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 39#L566 assume !(main_~array_size~0 < 1); 40#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 37#L550-3 [2020-11-29 19:17:25,354 INFO L796 eck$LassoCheckResult]: Loop: 37#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 42#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 44#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 36#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 37#L550-3 [2020-11-29 19:17:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,368 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-11-29 19:17:25,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783506260] [2020-11-29 19:17:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,435 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:25,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1453225, now seen corresponding path program 1 times [2020-11-29 19:17:25,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985604894] [2020-11-29 19:17:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:25,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985604894] [2020-11-29 19:17:25,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:17:25,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:17:25,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156863074] [2020-11-29 19:17:25,510 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:17:25,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:17:25,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:17:25,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:17:25,512 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-29 19:17:25,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:17:25,571 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2020-11-29 19:17:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:17:25,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-11-29 19:17:25,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 19:17:25,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2020-11-29 19:17:25,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 19:17:25,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 19:17:25,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-29 19:17:25,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:17:25,577 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-29 19:17:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-29 19:17:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 19:17:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 19:17:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-29 19:17:25,580 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-29 19:17:25,580 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-29 19:17:25,580 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:17:25,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-29 19:17:25,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 19:17:25,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:25,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:25,582 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:17:25,583 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:17:25,583 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 63#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; 64#L566 assume !(main_~array_size~0 < 1); 65#L566-2 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;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 66#L550-3 [2020-11-29 19:17:25,587 INFO L796 eck$LassoCheckResult]: Loop: 66#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 69#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 72#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;SelectionSort_~min~0 := SelectionSort_~j~0; 70#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 71#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 73#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 67#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 66#L550-3 [2020-11-29 19:17:25,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,595 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 3 times [2020-11-29 19:17:25,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758530320] [2020-11-29 19:17:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,653 INFO L82 PathProgramCache]: Analyzing trace with hash 393067660, now seen corresponding path program 1 times [2020-11-29 19:17:25,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762550486] [2020-11-29 19:17:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:25,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1419424808, now seen corresponding path program 1 times [2020-11-29 19:17:25,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:25,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080815733] [2020-11-29 19:17:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:25,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:25,828 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:26,096 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-11-29 19:17:26,422 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-11-29 19:17:26,525 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:17:26,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:17:26,527 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:17:26,527 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:17:26,527 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:17:26,527 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:26,527 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:17:26,528 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:17:26,528 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration3_Lasso [2020-11-29 19:17:26,528 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:17:26,528 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:17:26,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:26,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:26,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:26,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:26,838 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-11-29 19:17:26,990 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-11-29 19:17:26,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:27,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:17:27,728 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:27,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:27,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:27,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:27,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:27,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:27,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:27,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:27,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:27,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:27,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:27,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:27,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:27,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:27,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:27,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:27,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:27,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:27,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:27,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:27,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:27,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:27,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:27,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:27,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:27,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:27,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:27,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:27,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:27,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:27,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:27,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:27,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:27,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:27,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:28,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:28,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:28,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:28,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:28,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:28,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:28,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:28,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:17:28,303 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 19:17:28,304 INFO L444 ModelExtractionUtils]: 23 out of 40 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:28,328 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 19:17:28,333 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 19:17:28,333 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:17:28,334 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1, ULTIMATE.start_SelectionSort_~i~0) = 1*v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1 - 4*ULTIMATE.start_SelectionSort_~i~0 Supporting invariants [1*ULTIMATE.start_SelectionSort_~a.offset >= 0] [2020-11-29 19:17:28,459 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 19:17:28,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:17:28,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:28,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:17:28,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:28,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:17:28,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:28,743 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:17:28,744 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-29 19:17:28,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 6 states. [2020-11-29 19:17:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:17:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:17:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-29 19:17:28,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 7 letters. [2020-11-29 19:17:28,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:28,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 7 letters. [2020-11-29 19:17:28,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:28,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 14 letters. [2020-11-29 19:17:28,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:28,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2020-11-29 19:17:28,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:28,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 22 transitions. [2020-11-29 19:17:28,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-29 19:17:28,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 19:17:28,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2020-11-29 19:17:28,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:17:28,925 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-11-29 19:17:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2020-11-29 19:17:28,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-11-29 19:17:28,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:17:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2020-11-29 19:17:28,930 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-29 19:17:28,931 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-29 19:17:28,931 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:17:28,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2020-11-29 19:17:28,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:28,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:28,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:28,934 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:17:28,934 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:17:28,934 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 177#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; 178#L566 assume !(main_~array_size~0 < 1); 179#L566-2 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;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 180#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 182#L554-3 [2020-11-29 19:17:28,934 INFO L796 eck$LassoCheckResult]: Loop: 182#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 187#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;SelectionSort_~min~0 := SelectionSort_~j~0; 184#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 182#L554-3 [2020-11-29 19:17:28,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:28,935 INFO L82 PathProgramCache]: Analyzing trace with hash 28695756, now seen corresponding path program 1 times [2020-11-29 19:17:28,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:28,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878312505] [2020-11-29 19:17:28,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:28,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:28,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:28,979 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:28,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:28,980 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2020-11-29 19:17:28,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:28,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19351624] [2020-11-29 19:17:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:28,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:28,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:28,997 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash 176800017, now seen corresponding path program 1 times [2020-11-29 19:17:28,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:28,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348868290] [2020-11-29 19:17:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:29,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:29,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:29,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:29,359 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-11-29 19:17:29,612 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 19:17:29,615 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:17:29,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:17:29,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:17:29,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:17:29,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:17:29,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:29,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:17:29,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:17:29,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration4_Lasso [2020-11-29 19:17:29,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:17:29,616 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:17:29,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,834 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-11-29 19:17:29,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:29,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:30,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:17:30,531 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:30,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:30,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:30,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:30,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:30,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:30,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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) [2020-11-29 19:17:30,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:30,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:30,732 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 [2020-11-29 19:17:30,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:30,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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) [2020-11-29 19:17:30,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:30,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:30,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:30,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:30,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:30,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:30,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:30,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:30,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:30,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:30,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:30,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:31,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:31,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:31,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:31,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:31,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:31,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:31,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:31,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:31,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:31,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:31,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:31,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:31,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:31,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:31,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:31,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:31,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:31,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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 [2020-11-29 19:17:31,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:31,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:31,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:31,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:31,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:31,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:31,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:31,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:17:31,298 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 19:17:31,299 INFO L444 ModelExtractionUtils]: 20 out of 40 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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) [2020-11-29 19:17:31,306 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:31,311 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:17:31,311 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:17:31,311 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~j~0, ULTIMATE.start_SelectionSort_~array_size) = -1*ULTIMATE.start_SelectionSort_~j~0 + 1*ULTIMATE.start_SelectionSort_~array_size Supporting invariants [] [2020-11-29 19:17:31,371 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 19:17:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:31,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:17:31,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:31,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:17:31,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:31,457 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 19:17:31,457 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-29 19:17:31,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 33 states and 47 transitions. Complement of second has 7 states. [2020-11-29 19:17:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 19:17:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 19:17:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-11-29 19:17:31,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-29 19:17:31,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:31,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-29 19:17:31,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:31,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-29 19:17:31,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:31,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 47 transitions. [2020-11-29 19:17:31,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:31,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 22 states and 30 transitions. [2020-11-29 19:17:31,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-29 19:17:31,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-29 19:17:31,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2020-11-29 19:17:31,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:17:31,538 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-29 19:17:31,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2020-11-29 19:17:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2020-11-29 19:17:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:17:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-11-29 19:17:31,540 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:17:31,541 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-29 19:17:31,541 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:17:31,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-11-29 19:17:31,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:31,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:31,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:31,543 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:17:31,543 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:17:31,543 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 289#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; 290#L566 assume !(main_~array_size~0 < 1); 291#L566-2 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;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 292#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 294#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 300#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4; 297#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 298#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 301#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 287#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 288#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 295#L554-3 [2020-11-29 19:17:31,543 INFO L796 eck$LassoCheckResult]: Loop: 295#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 299#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;SelectionSort_~min~0 := SelectionSort_~j~0; 296#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 295#L554-3 [2020-11-29 19:17:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:31,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1109754407, now seen corresponding path program 1 times [2020-11-29 19:17:31,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:31,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931257884] [2020-11-29 19:17:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:31,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931257884] [2020-11-29 19:17:31,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149914935] [2020-11-29 19:17:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 19:17:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:31,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:17:31,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:31,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 19:17:31,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-11-29 19:17:31,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840606061] [2020-11-29 19:17:31,733 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:17:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 2 times [2020-11-29 19:17:31,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:31,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678731842] [2020-11-29 19:17:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:31,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:31,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:31,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:31,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:17:31,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:17:31,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:17:31,839 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-11-29 19:17:31,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:17:31,938 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-11-29 19:17:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:17:31,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-11-29 19:17:31,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:31,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 35 transitions. [2020-11-29 19:17:31,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-29 19:17:31,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-29 19:17:31,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 35 transitions. [2020-11-29 19:17:31,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:17:31,944 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-29 19:17:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 35 transitions. [2020-11-29 19:17:31,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2020-11-29 19:17:31,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 19:17:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-11-29 19:17:31,947 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-29 19:17:31,947 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-29 19:17:31,947 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 19:17:31,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-11-29 19:17:31,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 19:17:31,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:17:31,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:17:31,954 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:17:31,954 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 19:17:31,954 INFO L794 eck$LassoCheckResult]: Stem: 383#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 377#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; 378#L566 assume !(main_~array_size~0 < 1); 379#L566-2 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;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 380#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 384#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 394#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4; 387#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 388#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 390#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4; 391#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 393#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 392#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 381#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 382#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 385#L554-3 [2020-11-29 19:17:31,955 INFO L796 eck$LassoCheckResult]: Loop: 385#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 389#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;SelectionSort_~min~0 := SelectionSort_~j~0; 386#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 385#L554-3 [2020-11-29 19:17:31,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:31,955 INFO L82 PathProgramCache]: Analyzing trace with hash -366799804, now seen corresponding path program 2 times [2020-11-29 19:17:31,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:31,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475589370] [2020-11-29 19:17:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,046 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:32,047 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 3 times [2020-11-29 19:17:32,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:32,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60924626] [2020-11-29 19:17:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:32,062 INFO L82 PathProgramCache]: Analyzing trace with hash -936135015, now seen corresponding path program 1 times [2020-11-29 19:17:32,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:17:32,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277508923] [2020-11-29 19:17:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:17:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:17:32,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:17:32,154 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:17:32,870 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 108 [2020-11-29 19:17:33,003 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-29 19:17:33,006 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:17:33,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:17:33,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:17:33,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:17:33,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:17:33,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:33,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:17:33,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:17:33,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration6_Lasso [2020-11-29 19:17:33,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:17:33,007 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:17:33,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,303 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-11-29 19:17:33,428 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-11-29 19:17:33,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:17:33,996 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:17:33,996 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:34,017 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:34,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:34,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:34,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:17:34,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:34,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:34,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:34,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:34,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:34,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:34,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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) [2020-11-29 19:17:34,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:34,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:34,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:34,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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 [2020-11-29 19:17:34,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:17:34,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:17:34,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:17:34,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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 [2020-11-29 19:17:34,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:34,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:34,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/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 [2020-11-29 19:17:34,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:17:34,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:17:34,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:17:34,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:17:34,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:17:34,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:17:34,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:17:34,369 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:17:34,408 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-29 19:17:34,408 INFO L444 ModelExtractionUtils]: 6 out of 31 variables were initially zero. Simplification set additionally 21 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb19e8f0-f2ad-475d-832b-04c2b3210259/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:17:34,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:17:34,427 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 19:17:34,427 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:17:34,428 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~j~0, v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_3) = -4*ULTIMATE.start_SelectionSort_~j~0 + 1*v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_3 Supporting invariants [1*ULTIMATE.start_SelectionSort_~a.offset >= 0] [2020-11-29 19:17:34,511 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-29 19:17:34,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:17:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:34,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:17:34,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:34,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:17:34,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:34,707 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 [2020-11-29 19:17:34,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-29 19:17:34,792 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 35 states and 48 transitions. Complement of second has 8 states. [2020-11-29 19:17:34,793 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 [2020-11-29 19:17:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:17:34,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-29 19:17:34,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 19:17:34,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:34,794 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 19:17:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:34,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:17:34,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:34,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:17:34,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:34,978 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 [2020-11-29 19:17:34,978 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-29 19:17:35,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 35 states and 48 transitions. Complement of second has 8 states. [2020-11-29 19:17:35,055 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 [2020-11-29 19:17:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:17:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-29 19:17:35,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 19:17:35,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:35,056 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 19:17:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:17:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:35,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:17:35,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:17:35,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:17:35,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:17:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:17:35,290 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 [2020-11-29 19:17:35,291 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-29 19:17:35,380 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 39 transitions. Complement of second has 7 states. [2020-11-29 19:17:35,381 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 [2020-11-29 19:17:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 19:17:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-11-29 19:17:35,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 19:17:35,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:35,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2020-11-29 19:17:35,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:35,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 6 letters. [2020-11-29 19:17:35,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:17:35,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2020-11-29 19:17:35,386 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:17:35,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2020-11-29 19:17:35,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:17:35,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:17:35,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:17:35,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:17:35,387 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:17:35,387 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:17:35,387 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:17:35,387 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 19:17:35,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:17:35,387 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:17:35,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:17:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:17:35 BoogieIcfgContainer [2020-11-29 19:17:35,405 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:17:35,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:17:35,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:17:35,406 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:17:35,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:17:24" (3/4) ... [2020-11-29 19:17:35,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:17:35,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:17:35,417 INFO L168 Benchmark]: Toolchain (without parser) took 12175.07 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 63.0 MB in the beginning and 128.6 MB in the end (delta: -65.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:17:35,421 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 94.4 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:17:35,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.76 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 61.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:17:35,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:17:35,423 INFO L168 Benchmark]: Boogie Preprocessor took 32.54 ms. Allocated memory is still 94.4 MB. Free memory was 59.4 MB in the beginning and 58.5 MB in the end (delta: 889.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:17:35,425 INFO L168 Benchmark]: RCFGBuilder took 661.27 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 44.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:17:35,429 INFO L168 Benchmark]: BuchiAutomizer took 10744.32 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 44.3 MB in the beginning and 128.6 MB in the end (delta: -84.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:17:35,430 INFO L168 Benchmark]: Witness Printer took 5.69 ms. Allocated memory is still 167.8 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:17:35,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 94.4 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 670.76 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 61.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.54 ms. Allocated memory is still 94.4 MB. Free memory was 59.4 MB in the beginning and 58.5 MB in the end (delta: 889.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 661.27 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 44.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10744.32 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 44.3 MB in the beginning and 128.6 MB in the end (delta: -84.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.69 ms. Allocated memory is still 167.8 MB. Free memory is still 128.6 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[a] + -4 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * j + array_size and consists of 4 locations. One nondeterministic module has affine ranking function -4 * j + unknown-#length-unknown[a] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.6s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.7s. Construction of modules took 0.2s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 81 SDtfs, 90 SDslu, 46 SDs, 0 SdLazy, 101 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital189 mio100 ax109 hnf99 lsp86 ukn79 mio100 lsp69 div100 bol100 ite100 ukn100 eq170 hnf86 smp95 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...