./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_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:57:55,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:55,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:56,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:56,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:56,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:56,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:56,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:56,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:56,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:56,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:56,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:56,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:56,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:56,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:56,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:56,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:56,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:56,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:56,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:56,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:56,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:56,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:56,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:56,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:56,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:56,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:56,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:56,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:56,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:56,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:56,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:56,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:56,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:56,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:56,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:56,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:56,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:56,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:56,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:56,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:56,114 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:57:56,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:56,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:56,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:56,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:56,141 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:56,142 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:56,142 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:56,142 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:56,142 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:56,143 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:56,143 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:56,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:56,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:56,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:56,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:56,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:56,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:56,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:56,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:56,145 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:56,149 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:56,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:56,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:56,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:56,150 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:56,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:56,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:56,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:56,151 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:56,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:56,154 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_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a61d79c4ca9451b26ba6dc1b90600e9ebfec9cf [2020-11-28 02:57:56,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:56,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:56,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:56,447 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:56,448 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:56,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2020-11-28 02:57:56,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/data/17942852f/dc324fdcccf749fd93ecd1678cf74baf/FLAGc507c30a4 [2020-11-28 02:57:57,020 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:57,021 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2020-11-28 02:57:57,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/data/17942852f/dc324fdcccf749fd93ecd1678cf74baf/FLAGc507c30a4 [2020-11-28 02:57:57,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/data/17942852f/dc324fdcccf749fd93ecd1678cf74baf [2020-11-28 02:57:57,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:57,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:57,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:57,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:57,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:57,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17643541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57, skipping insertion in model container [2020-11-28 02:57:57,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:57,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:57,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:57,833 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:57,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:57,927 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:57,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57 WrapperNode [2020-11-28 02:57:57,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:57,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:57,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:57,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:57,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:57,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:57,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:57,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:58,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:58,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:58,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:58,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:58,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:58,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:57:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:58,380 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:58,383 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:57:58,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58 BoogieIcfgContainer [2020-11-28 02:57:58,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:58,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:58,386 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:58,400 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:58,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:57" (1/3) ... [2020-11-28 02:57:58,403 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1bc728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:58, skipping insertion in model container [2020-11-28 02:57:58,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57" (2/3) ... [2020-11-28 02:57:58,405 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1bc728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:58, skipping insertion in model container [2020-11-28 02:57:58,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58" (3/3) ... [2020-11-28 02:57:58,407 INFO L373 chiAutomizerObserver]: Analyzing ICFG selectionsort-alloca-2.i [2020-11-28 02:57:58,486 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:58,486 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:58,486 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:58,486 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:58,486 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:58,487 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:58,487 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:58,487 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:58,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-28 02:57:58,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:58,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,531 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 02:57:58,531 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:58,532 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:58,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-28 02:57:58,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:58,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,534 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 02:57:58,534 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:58,542 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 [2020-11-28 02:57:58,542 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 [2020-11-28 02:57:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,549 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-28 02:57:58,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745157386] [2020-11-28 02:57:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,682 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:58,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1463796, now seen corresponding path program 1 times [2020-11-28 02:57:58,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87974099] [2020-11-28 02:57:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:58,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87974099] [2020-11-28 02:57:58,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:58,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:58,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549199054] [2020-11-28 02:57:58,726 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:58,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:57:58,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:57:58,745 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-28 02:57:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:58,751 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-11-28 02:57:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:57:58,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-11-28 02:57:58,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:58,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2020-11-28 02:57:58,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:57:58,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 02:57:58,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-28 02:57:58,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:58,759 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-28 02:57:58,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 02:57:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 02:57:58,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-28 02:57:58,780 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:58,780 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:58,781 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:58,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-28 02:57:58,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 02:57:58,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,782 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 02:57:58,782 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:58,783 INFO L794 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 39#L566 assume !(main_~array_size~0 < 1); 40#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 37#L550-3 [2020-11-28 02:57:58,783 INFO L796 eck$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 [2020-11-28 02:57:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,783 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2020-11-28 02:57:58,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454680816] [2020-11-28 02:57:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,818 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1453225, now seen corresponding path program 1 times [2020-11-28 02:57:58,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868529539] [2020-11-28 02:57:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:58,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868529539] [2020-11-28 02:57:58,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:58,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:58,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035687834] [2020-11-28 02:57:58,893 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:58,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:58,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:58,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:58,895 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 02:57:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:58,934 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2020-11-28 02:57:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:58,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-11-28 02:57:58,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-28 02:57:58,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 02:57:58,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 02:57:58,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 02:57:58,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-28 02:57:58,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:58,938 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 02:57:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-28 02:57:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 02:57:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 02:57:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 02:57:58,940 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 02:57:58,940 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 02:57:58,940 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:58,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-28 02:57:58,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-28 02:57:58,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,941 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 02:57:58,942 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:58,942 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 [2020-11-28 02:57:58,942 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 [2020-11-28 02:57:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,943 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 3 times [2020-11-28 02:57:58,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128189743] [2020-11-28 02:57:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:58,967 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:58,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,968 INFO L82 PathProgramCache]: Analyzing trace with hash 393067660, now seen corresponding path program 1 times [2020-11-28 02:57:58,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625965753] [2020-11-28 02:57:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:58,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:59,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1419424808, now seen corresponding path program 1 times [2020-11-28 02:57:59,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:59,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577022175] [2020-11-28 02:57:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,071 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:59,309 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2020-11-28 02:57:59,543 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-11-28 02:57:59,628 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:59,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:59,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:59,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:59,629 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:59,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:59,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:59,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:59,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration3_Lasso [2020-11-28 02:57:59,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:59,630 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:59,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,833 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-11-28 02:57:59,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:59,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,402 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:00,409 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:00,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:00,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:00,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:00,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:00,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:00,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:00,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:00,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:00,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:00,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:00,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:00,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:00,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:00,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:00,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:00,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:00,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:00,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:00,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:00,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:00,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:00,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:00,517 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 [2020-11-28 02:58:00,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:00,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:00,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:00,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:00,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:00,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:00,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:00,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) [2020-11-28 02:58:00,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:00,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:00,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:00,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:00,631 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 [2020-11-28 02:58:00,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:00,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:00,682 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:00,922 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-28 02:58:00,922 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_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:00,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,971 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 02:58:00,971 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:00,972 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~i~0, v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1) = -4*ULTIMATE.start_SelectionSort_~i~0 + 1*v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1 Supporting invariants [1*ULTIMATE.start_SelectionSort_~a.offset >= 0] [2020-11-28 02:58:01,071 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-28 02:58:01,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:58:01,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:01,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:01,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:01,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:01,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:01,256 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 [2020-11-28 02:58:01,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-28 02:58:01,385 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. [2020-11-28 02:58:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:01,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-28 02:58:01,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 7 letters. [2020-11-28 02:58:01,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:01,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 7 letters. [2020-11-28 02:58:01,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:01,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 14 letters. [2020-11-28 02:58:01,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:01,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2020-11-28 02:58:01,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:01,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 22 transitions. [2020-11-28 02:58:01,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 02:58:01,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-28 02:58:01,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2020-11-28 02:58:01,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:01,393 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-11-28 02:58:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2020-11-28 02:58:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-11-28 02:58:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:58:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2020-11-28 02:58:01,395 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-28 02:58:01,395 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-28 02:58:01,395 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:58:01,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2020-11-28 02:58:01,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:01,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:01,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:01,397 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:58:01,397 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:58:01,397 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 [2020-11-28 02:58:01,397 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 [2020-11-28 02:58:01,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:01,400 INFO L82 PathProgramCache]: Analyzing trace with hash 28695756, now seen corresponding path program 1 times [2020-11-28 02:58:01,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:01,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735965205] [2020-11-28 02:58:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:01,452 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2020-11-28 02:58:01,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:01,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846207798] [2020-11-28 02:58:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,465 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:01,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:01,472 INFO L82 PathProgramCache]: Analyzing trace with hash 176800017, now seen corresponding path program 1 times [2020-11-28 02:58:01,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:01,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086789037] [2020-11-28 02:58:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:01,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:01,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:01,770 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-11-28 02:58:01,838 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:01,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:01,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:01,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:01,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:01,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:01,839 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:01,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:01,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration4_Lasso [2020-11-28 02:58:01,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:01,839 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:01,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,026 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-11-28 02:58:02,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:02,581 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:02,581 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) [2020-11-28 02:58:02,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,596 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 [2020-11-28 02:58:02,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:02,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,645 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 [2020-11-28 02:58:02,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) [2020-11-28 02:58:02,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,811 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 [2020-11-28 02:58:02,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:02,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:58:03,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:03,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:03,081 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 02:58:03,081 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_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:58:03,101 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:03,102 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:03,102 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 [] [2020-11-28 02:58:03,130 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-28 02:58:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:58:03,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 02:58:03,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:03,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:58:03,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 02:58:03,234 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. [2020-11-28 02:58:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:58:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-11-28 02:58:03,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-28 02:58:03,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:03,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-28 02:58:03,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:03,236 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-28 02:58:03,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:03,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 47 transitions. [2020-11-28 02:58:03,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:03,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 22 states and 30 transitions. [2020-11-28 02:58:03,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-28 02:58:03,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 02:58:03,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2020-11-28 02:58:03,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:03,239 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-28 02:58:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2020-11-28 02:58:03,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2020-11-28 02:58:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:58:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-11-28 02:58:03,241 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-28 02:58:03,241 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-11-28 02:58:03,241 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:58:03,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-11-28 02:58:03,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:03,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:03,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:03,242 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:03,242 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:58:03,242 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 [2020-11-28 02:58:03,242 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 [2020-11-28 02:58:03,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1109754407, now seen corresponding path program 1 times [2020-11-28 02:58:03,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30193224] [2020-11-28 02:58:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:03,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30193224] [2020-11-28 02:58:03,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242697641] [2020-11-28 02:58:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:58:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:03,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:03,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:58:03,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-11-28 02:58:03,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709247304] [2020-11-28 02:58:03,408 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:58:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,409 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 2 times [2020-11-28 02:58:03,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603285573] [2020-11-28 02:58:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,440 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:58:03,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:58:03,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:58:03,502 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-11-28 02:58:03,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:03,562 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-11-28 02:58:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:58:03,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-11-28 02:58:03,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:03,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 35 transitions. [2020-11-28 02:58:03,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-28 02:58:03,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 02:58:03,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 35 transitions. [2020-11-28 02:58:03,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:58:03,566 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-28 02:58:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 35 transitions. [2020-11-28 02:58:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2020-11-28 02:58:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 02:58:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-11-28 02:58:03,568 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 02:58:03,568 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-11-28 02:58:03,568 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:58:03,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-11-28 02:58:03,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:58:03,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:58:03,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:58:03,570 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:03,570 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:58:03,570 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 [2020-11-28 02:58:03,570 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 [2020-11-28 02:58:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash -366799804, now seen corresponding path program 2 times [2020-11-28 02:58:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736861509] [2020-11-28 02:58:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,647 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 3 times [2020-11-28 02:58:03,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985318120] [2020-11-28 02:58:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,664 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:03,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,665 INFO L82 PathProgramCache]: Analyzing trace with hash -936135015, now seen corresponding path program 1 times [2020-11-28 02:58:03,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:58:03,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204251362] [2020-11-28 02:58:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:58:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:03,729 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:03,741 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:58:04,272 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 108 [2020-11-28 02:58:04,407 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-28 02:58:04,409 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:04,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:04,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:04,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:04,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:04,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:04,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:04,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:04,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration6_Lasso [2020-11-28 02:58:04,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:04,410 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:04,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,601 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-11-28 02:58:04,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:04,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:05,260 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:05,260 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:05,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:05,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:05,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:05,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:58:05,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:05,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:05,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:58:05,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:05,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:05,358 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:05,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:05,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:05,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/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 [2020-11-28 02:58:05,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:05,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:05,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:05,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:05,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:05,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:05,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:05,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:05,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:05,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:05,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:05,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:05,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:05,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:05,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:05,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:05,614 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-28 02:58:05,614 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_a943164f-0be1-4a3d-8c98-df7e8d1ab4eb/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:05,617 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 [2020-11-28 02:58:05,620 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 02:58:05,620 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:05,620 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] [2020-11-28 02:58:05,669 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-28 02:58:05,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:58:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:05,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:05,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:05,793 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 [2020-11-28 02:58:05,793 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 02:58:05,858 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. [2020-11-28 02:58:05,859 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 [2020-11-28 02:58:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-28 02:58:05,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 02:58:05,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:05,860 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:58:05,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:05,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:05,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:05,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:05,993 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 [2020-11-28 02:58:05,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 02:58:06,049 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. [2020-11-28 02:58:06,050 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 [2020-11-28 02:58:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-28 02:58:06,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 02:58:06,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:06,051 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:58:06,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:58:06,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:06,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:58:06,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:06,200 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 [2020-11-28 02:58:06,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 02:58:06,264 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. [2020-11-28 02:58:06,265 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 [2020-11-28 02:58:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-11-28 02:58:06,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 02:58:06,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:06,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2020-11-28 02:58:06,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:06,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 6 letters. [2020-11-28 02:58:06,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:06,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2020-11-28 02:58:06,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:06,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2020-11-28 02:58:06,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:58:06,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:58:06,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:58:06,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:58:06,274 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:06,274 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:06,274 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:06,274 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 02:58:06,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:58:06,275 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:06,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:58:06,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:58:06 BoogieIcfgContainer [2020-11-28 02:58:06,280 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:58:06,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:06,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:06,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:06,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58" (3/4) ... [2020-11-28 02:58:06,288 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:58:06,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:06,289 INFO L168 Benchmark]: Toolchain (without parser) took 8924.28 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 48.6 MB in the beginning and 67.1 MB in the end (delta: -18.5 MB). Peak memory consumption was 44.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:06,289 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 57.7 MB in the beginning and 57.7 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:06,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.86 ms. Allocated memory is still 81.8 MB. Free memory was 48.5 MB in the beginning and 50.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:06,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.33 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 48.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:06,291 INFO L168 Benchmark]: Boogie Preprocessor took 38.69 ms. Allocated memory is still 81.8 MB. Free memory was 48.9 MB in the beginning and 47.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:06,291 INFO L168 Benchmark]: RCFGBuilder took 358.79 ms. Allocated memory is still 81.8 MB. Free memory was 47.6 MB in the beginning and 33.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:06,292 INFO L168 Benchmark]: BuchiAutomizer took 7893.90 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 33.4 MB in the beginning and 67.1 MB in the end (delta: -33.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:06,292 INFO L168 Benchmark]: Witness Printer took 7.38 ms. Allocated memory is still 144.7 MB. Free memory is still 67.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:06,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 57.7 MB in the beginning and 57.7 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.86 ms. Allocated memory is still 81.8 MB. Free memory was 48.5 MB in the beginning and 50.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.33 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 48.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.69 ms. Allocated memory is still 81.8 MB. Free memory was 48.9 MB in the beginning and 47.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 358.79 ms. Allocated memory is still 81.8 MB. Free memory was 47.6 MB in the beginning and 33.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7893.90 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 33.4 MB in the beginning and 67.1 MB in the end (delta: -33.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * Witness Printer took 7.38 ms. Allocated memory is still 144.7 MB. Free memory is still 67.1 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 -4 * i + unknown-#length-unknown[a] 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 7.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. 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, 0.1s 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: 21ms 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...