./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 6ac1507c93933134ec25f982abf479335179fe0d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:35:58,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:35:58,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:35:58,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:35:58,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:35:58,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:35:58,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:35:58,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:35:58,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:35:58,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:35:58,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:35:58,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:35:58,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:35:58,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:35:58,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:35:58,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:35:58,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:35:58,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:35:58,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:35:58,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:35:58,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:35:58,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:35:58,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:35:58,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:35:58,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:35:58,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:35:58,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:35:58,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:35:58,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:35:58,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:35:58,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:35:58,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:35:58,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:35:58,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:35:58,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:35:58,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:35:58,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:35:58,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:35:58,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:35:58,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:35:58,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:35:58,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 10:35:58,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:35:58,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:35:58,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:35:58,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:35:58,168 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:35:58,168 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:35:58,168 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:35:58,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:35:58,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:35:58,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:35:58,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:35:58,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:35:58,171 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:35:58,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:35:58,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:35:58,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:35:58,171 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:35:58,172 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:35:58,172 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 -> 6ac1507c93933134ec25f982abf479335179fe0d [2019-12-07 10:35:58,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:35:58,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:35:58,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:35:58,289 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:35:58,289 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:35:58,290 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2019-12-07 10:35:58,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/data/8b100fb71/84b600c4121245eb87a2c394ee1f351c/FLAG6dc8ab2a3 [2019-12-07 10:35:58,708 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:35:58,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2019-12-07 10:35:58,712 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/data/8b100fb71/84b600c4121245eb87a2c394ee1f351c/FLAG6dc8ab2a3 [2019-12-07 10:35:59,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/data/8b100fb71/84b600c4121245eb87a2c394ee1f351c [2019-12-07 10:35:59,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:35:59,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:35:59,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:35:59,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:35:59,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:35:59,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59, skipping insertion in model container [2019-12-07 10:35:59,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:35:59,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:35:59,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:35:59,242 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:35:59,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:35:59,301 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:35:59,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59 WrapperNode [2019-12-07 10:35:59,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:35:59,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:35:59,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:35:59,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:35:59,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:35:59,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:35:59,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:35:59,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:35:59,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... [2019-12-07 10:35:59,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:35:59,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:35:59,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:35:59,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:35:59,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:35:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure selectionSort [2019-12-07 10:35:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure selectionSort [2019-12-07 10:35:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 10:35:59,523 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:35:59,524 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:35:59,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:35:59 BoogieIcfgContainer [2019-12-07 10:35:59,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:35:59,525 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:35:59,525 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:35:59,527 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:35:59,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:35:59,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:35:59" (1/3) ... [2019-12-07 10:35:59,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@927da85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:35:59, skipping insertion in model container [2019-12-07 10:35:59,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:35:59,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:35:59" (2/3) ... [2019-12-07 10:35:59,529 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@927da85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:35:59, skipping insertion in model container [2019-12-07 10:35:59,529 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:35:59,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:35:59" (3/3) ... [2019-12-07 10:35:59,530 INFO L371 chiAutomizerObserver]: Analyzing ICFG selectionSort_recursive.i [2019-12-07 10:35:59,558 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:35:59,559 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:35:59,559 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:35:59,559 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:35:59,559 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:35:59,559 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:35:59,559 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:35:59,559 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:35:59,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-12-07 10:35:59,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-12-07 10:35:59,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:35:59,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:35:59,590 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:35:59,590 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:35:59,591 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:35:59,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-12-07 10:35:59,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-12-07 10:35:59,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:35:59,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:35:59,593 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:35:59,593 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:35:59,598 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 9#L31true assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 16#L36-3true [2019-12-07 10:35:59,598 INFO L796 eck$LassoCheckResult]: Loop: 16#L36-3true assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 20#L36-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 16#L36-3true [2019-12-07 10:35:59,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:35:59,602 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-12-07 10:35:59,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:35:59,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298925528] [2019-12-07 10:35:59,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:35:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,688 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:35:59,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:35:59,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2019-12-07 10:35:59,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:35:59,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876803527] [2019-12-07 10:35:59,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:35:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,701 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:35:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:35:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2019-12-07 10:35:59,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:35:59,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608383044] [2019-12-07 10:35:59,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:35:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:35:59,727 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:35:59,835 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:35:59,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:35:59,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:35:59,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:35:59,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:35:59,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:35:59,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:35:59,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:35:59,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration1_Lasso [2019-12-07 10:35:59,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:35:59,837 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:35:59,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:35:59,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:35:59,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:35:59,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:35:59,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:35:59,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:00,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:36:00,100 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:00,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:00,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:00,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:00,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:00,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:00,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:00,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:00,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:00,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:00,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:00,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:00,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:00,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:00,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:00,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,141 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 10:36:00,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,146 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-12-07 10:36:00,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:00,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:00,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:00,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:00,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:00,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:00,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:00,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:00,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:00,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:00,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:00,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:00,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:00,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:36:00,220 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-12-07 10:36:00,220 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:00,225 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:36:00,231 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 10:36:00,231 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:36:00,232 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~a~0.base)_1) = -2*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~a~0.base)_1 Supporting invariants [-2*ULTIMATE.start_main_~n~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 >= 0] [2019-12-07 10:36:00,244 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 10:36:00,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 10:36:00,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,292 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:36:00,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,303 WARN L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 10:36:00,304 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:00,334 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:36:00,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2019-12-07 10:36:00,395 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 3 states. Result 39 states and 53 transitions. Complement of second has 9 states. [2019-12-07 10:36:00,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:36:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-12-07 10:36:00,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 10:36:00,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:00,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:36:00,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:00,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 3 letters. Loop has 4 letters. [2019-12-07 10:36:00,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:00,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 53 transitions. [2019-12-07 10:36:00,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 10:36:00,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 14 states and 19 transitions. [2019-12-07 10:36:00,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 10:36:00,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 10:36:00,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-12-07 10:36:00,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:36:00,411 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-12-07 10:36:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-12-07 10:36:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 10:36:00,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 10:36:00,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2019-12-07 10:36:00,431 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-12-07 10:36:00,431 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-12-07 10:36:00,431 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:36:00,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2019-12-07 10:36:00,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 10:36:00,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:00,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:00,433 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 10:36:00,433 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 10:36:00,433 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 130#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 131#L36-3 assume !(main_~i~0 < main_~n~0); 124#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 127#selectionSortENTRY [2019-12-07 10:36:00,433 INFO L796 eck$LassoCheckResult]: Loop: 127#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 128#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 132#L14-3 assume !(~index~0 < ~size); 133#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 125#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 127#selectionSortENTRY [2019-12-07 10:36:00,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,434 INFO L82 PathProgramCache]: Analyzing trace with hash 28695915, now seen corresponding path program 1 times [2019-12-07 10:36:00,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716168212] [2019-12-07 10:36:00,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:00,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716168212] [2019-12-07 10:36:00,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:36:00,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:36:00,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579081482] [2019-12-07 10:36:00,475 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:36:00,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,475 INFO L82 PathProgramCache]: Analyzing trace with hash 53570596, now seen corresponding path program 1 times [2019-12-07 10:36:00,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076325584] [2019-12-07 10:36:00,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:00,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076325584] [2019-12-07 10:36:00,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:36:00,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:36:00,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813902592] [2019-12-07 10:36:00,494 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:36:00,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:36:00,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:36:00,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:36:00,497 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-12-07 10:36:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:36:00,509 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2019-12-07 10:36:00,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:36:00,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2019-12-07 10:36:00,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:00,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2019-12-07 10:36:00,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 10:36:00,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 10:36:00,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2019-12-07 10:36:00,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:36:00,513 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 10:36:00,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2019-12-07 10:36:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 10:36:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 10:36:00,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-12-07 10:36:00,516 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 10:36:00,516 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-12-07 10:36:00,516 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:36:00,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-12-07 10:36:00,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:00,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:00,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:00,518 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 10:36:00,518 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:00,518 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 165#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 166#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 167#L36-3 assume !(main_~i~0 < main_~n~0); 160#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 163#selectionSortENTRY [2019-12-07 10:36:00,518 INFO L796 eck$LassoCheckResult]: Loop: 163#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 164#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 168#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 159#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 162#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 171#L14-3 assume !(~index~0 < ~size); 169#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 161#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 163#selectionSortENTRY [2019-12-07 10:36:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 28695915, now seen corresponding path program 2 times [2019-12-07 10:36:00,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921503213] [2019-12-07 10:36:00,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:00,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921503213] [2019-12-07 10:36:00,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:36:00,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:36:00,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177462496] [2019-12-07 10:36:00,538 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:36:00,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 1 times [2019-12-07 10:36:00,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335897854] [2019-12-07 10:36:00,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,567 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:00,688 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-12-07 10:36:00,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:36:00,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:36:00,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:36:00,810 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-12-07 10:36:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:36:00,819 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-12-07 10:36:00,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:36:00,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-12-07 10:36:00,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:00,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 19 transitions. [2019-12-07 10:36:00,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 10:36:00,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 10:36:00,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2019-12-07 10:36:00,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:36:00,821 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-07 10:36:00,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2019-12-07 10:36:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-12-07 10:36:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 10:36:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-12-07 10:36:00,822 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-12-07 10:36:00,822 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-12-07 10:36:00,823 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:36:00,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-12-07 10:36:00,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:00,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:00,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:00,824 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:00,824 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:00,824 INFO L794 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 202#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 203#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 204#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 209#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 210#L36-3 assume !(main_~i~0 < main_~n~0); 197#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 200#selectionSortENTRY [2019-12-07 10:36:00,824 INFO L796 eck$LassoCheckResult]: Loop: 200#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 201#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 205#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 196#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 199#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 208#L14-3 assume !(~index~0 < ~size); 206#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 198#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 200#selectionSortENTRY [2019-12-07 10:36:00,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996941, now seen corresponding path program 1 times [2019-12-07 10:36:00,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10663032] [2019-12-07 10:36:00,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:00,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 2 times [2019-12-07 10:36:00,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855556219] [2019-12-07 10:36:00,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:00,858 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:00,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:00,858 INFO L82 PathProgramCache]: Analyzing trace with hash 170190416, now seen corresponding path program 1 times [2019-12-07 10:36:00,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:00,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901581342] [2019-12-07 10:36:00,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 10:36:00,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901581342] [2019-12-07 10:36:00,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845236162] [2019-12-07 10:36:00,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:36:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:00,947 INFO L264 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:36:00,948 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 10:36:00,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:36:00,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-12-07 10:36:00,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032494233] [2019-12-07 10:36:01,086 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-12-07 10:36:01,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:36:01,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 10:36:01,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 10:36:01,188 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 10 states. [2019-12-07 10:36:01,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:36:01,238 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-12-07 10:36:01,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:36:01,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2019-12-07 10:36:01,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:01,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 21 transitions. [2019-12-07 10:36:01,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 10:36:01,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 10:36:01,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2019-12-07 10:36:01,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:36:01,240 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 10:36:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2019-12-07 10:36:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-12-07 10:36:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 10:36:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-12-07 10:36:01,242 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-12-07 10:36:01,242 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-12-07 10:36:01,242 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 10:36:01,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2019-12-07 10:36:01,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 10:36:01,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:01,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:01,243 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-12-07 10:36:01,243 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:01,243 INFO L794 eck$LassoCheckResult]: Stem: 304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 299#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 300#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 301#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 306#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 307#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 308#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 309#L36-3 assume !(main_~i~0 < main_~n~0); 295#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 297#selectionSortENTRY [2019-12-07 10:36:01,243 INFO L796 eck$LassoCheckResult]: Loop: 297#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 298#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 302#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 293#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 296#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 305#L14-3 assume !(~index~0 < ~size); 303#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 294#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 297#selectionSortENTRY [2019-12-07 10:36:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:01,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1357299119, now seen corresponding path program 2 times [2019-12-07 10:36:01,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:01,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098643431] [2019-12-07 10:36:01,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,257 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:01,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:01,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 3 times [2019-12-07 10:36:01,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:01,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457731862] [2019-12-07 10:36:01,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,271 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:01,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:01,271 INFO L82 PathProgramCache]: Analyzing trace with hash -290845646, now seen corresponding path program 2 times [2019-12-07 10:36:01,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:01,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189958093] [2019-12-07 10:36:01,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:01,302 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:01,427 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-12-07 10:36:01,650 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-12-07 10:36:01,751 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:36:01,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:36:01,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:36:01,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:36:01,752 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:36:01,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:01,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:36:01,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:36:01,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration5_Lasso [2019-12-07 10:36:01,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:36:01,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:36:01,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:01,997 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:36:01,997 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:02,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:02,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,050 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,093 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/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 [2019-12-07 10:36:02,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:02,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:02,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:02,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:02,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:02,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:02,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:02,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:02,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:02,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:02,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:02,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:02,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:36:02,248 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 10:36:02,248 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:36:02,262 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:36:02,262 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:36:02,262 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(selectionSort_#in~startIndex, selectionSort_#in~size) = -1*selectionSort_#in~startIndex + 1*selectionSort_#in~size Supporting invariants [] [2019-12-07 10:36:02,268 INFO L297 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2019-12-07 10:36:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:02,291 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:02,292 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:02,300 INFO L264 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 10:36:02,301 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 10:36:02,313 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 [2019-12-07 10:36:02,313 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 10:36:02,343 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 39 states and 48 transitions. Complement of second has 11 states. [2019-12-07 10:36:02,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:36:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-12-07 10:36:02,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2019-12-07 10:36:02,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:02,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 8 letters. [2019-12-07 10:36:02,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:02,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 16 letters. [2019-12-07 10:36:02,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:02,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2019-12-07 10:36:02,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 10:36:02,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 35 states and 44 transitions. [2019-12-07 10:36:02,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 10:36:02,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 10:36:02,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2019-12-07 10:36:02,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:36:02,348 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-12-07 10:36:02,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2019-12-07 10:36:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 22. [2019-12-07 10:36:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 10:36:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-12-07 10:36:02,350 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-12-07 10:36:02,350 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-12-07 10:36:02,350 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 10:36:02,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2019-12-07 10:36:02,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:36:02,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:02,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:02,350 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:02,351 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:36:02,351 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 449#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 450#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 451#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 457#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 458#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 459#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 460#L36-3 assume !(main_~i~0 < main_~n~0); 440#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 445#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 446#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 452#L14-3 [2019-12-07 10:36:02,351 INFO L796 eck$LassoCheckResult]: Loop: 452#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 439#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 441#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 452#L14-3 [2019-12-07 10:36:02,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:02,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1305603789, now seen corresponding path program 1 times [2019-12-07 10:36:02,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:02,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928470048] [2019-12-07 10:36:02,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,368 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:02,369 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 1 times [2019-12-07 10:36:02,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:02,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967421660] [2019-12-07 10:36:02,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,376 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:02,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:02,377 INFO L82 PathProgramCache]: Analyzing trace with hash -18607689, now seen corresponding path program 1 times [2019-12-07 10:36:02,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:02,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933232660] [2019-12-07 10:36:02,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:02,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:02,560 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-12-07 10:36:02,751 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:36:02,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:36:02,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:36:02,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:36:02,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:36:02,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:02,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:36:02,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:36:02,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration6_Lasso [2019-12-07 10:36:02,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:36:02,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:36:02,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:02,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:03,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:36:03,103 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:03,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:03,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:03,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:03,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:03,152 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:03,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:03,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:03,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:03,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:03,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:03,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:03,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:03,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:03,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:36:03,217 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 10:36:03,217 INFO L444 ModelExtractionUtils]: 14 out of 34 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:03,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:36:03,222 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:36:03,222 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:36:03,222 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(selectionSort_~index~0, selectionSort_~size) = -1*selectionSort_~index~0 + 1*selectionSort_~size Supporting invariants [] [2019-12-07 10:36:03,230 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 10:36:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:03,248 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:03,248 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:03,252 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:03,253 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:03,258 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:36:03,259 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 10:36:03,269 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 40 states and 53 transitions. Complement of second has 8 states. [2019-12-07 10:36:03,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:36:03,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 10:36:03,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2019-12-07 10:36:03,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:03,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2019-12-07 10:36:03,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:03,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2019-12-07 10:36:03,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:03,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2019-12-07 10:36:03,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:36:03,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 36 transitions. [2019-12-07 10:36:03,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-12-07 10:36:03,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 10:36:03,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-12-07 10:36:03,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:36:03,272 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-12-07 10:36:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-12-07 10:36:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-12-07 10:36:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-07 10:36:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-12-07 10:36:03,274 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-12-07 10:36:03,274 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-12-07 10:36:03,274 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 10:36:03,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-12-07 10:36:03,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:36:03,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:03,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:03,275 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:03,275 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:36:03,275 INFO L794 eck$LassoCheckResult]: Stem: 600#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 594#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 595#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 596#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 602#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 603#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 604#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 605#L36-3 assume !(main_~i~0 < main_~n~0); 589#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 590#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 591#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 598#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 587#L16 assume !(#t~mem2 < #t~mem3);havoc #t~mem2;havoc #t~mem3; 588#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 601#L14-3 assume !(~index~0 < ~size); 599#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 585#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 592#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 593#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 597#L14-3 [2019-12-07 10:36:03,275 INFO L796 eck$LassoCheckResult]: Loop: 597#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 584#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 586#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 597#L14-3 [2019-12-07 10:36:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1445216632, now seen corresponding path program 1 times [2019-12-07 10:36:03,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:03,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646453809] [2019-12-07 10:36:03,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 10:36:03,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646453809] [2019-12-07 10:36:03,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613889611] [2019-12-07 10:36:03,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:36:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:03,345 INFO L264 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 10:36:03,346 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 10:36:03,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:36:03,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 14 [2019-12-07 10:36:03,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400599736] [2019-12-07 10:36:03,406 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:36:03,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,406 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 2 times [2019-12-07 10:36:03,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:03,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267208385] [2019-12-07 10:36:03,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,411 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:03,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:36:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 10:36:03,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-12-07 10:36:03,440 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 15 states. [2019-12-07 10:36:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:36:03,569 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2019-12-07 10:36:03,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 10:36:03,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 64 transitions. [2019-12-07 10:36:03,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:36:03,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 36 states and 45 transitions. [2019-12-07 10:36:03,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 10:36:03,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 10:36:03,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2019-12-07 10:36:03,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:36:03,571 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-12-07 10:36:03,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2019-12-07 10:36:03,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-12-07 10:36:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 10:36:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-12-07 10:36:03,573 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-12-07 10:36:03,573 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-12-07 10:36:03,573 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 10:36:03,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-12-07 10:36:03,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 10:36:03,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:36:03,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:36:03,574 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:36:03,574 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 10:36:03,575 INFO L794 eck$LassoCheckResult]: Stem: 762#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 755#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 756#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 757#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 764#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 771#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 767#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 765#L36-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet9, main_~a~0.base, main_~a~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet9; 766#L36-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 768#L36-3 assume !(main_~i~0 < main_~n~0); 749#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 751#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 752#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 760#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 770#L16 assume !(#t~mem2 < #t~mem3);havoc #t~mem2;havoc #t~mem3; 763#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 759#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 748#L16 assume !(#t~mem2 < #t~mem3);havoc #t~mem2;havoc #t~mem3; 750#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 769#L14-3 assume !(~index~0 < ~size); 761#L14-4 call #t~mem4 := read~int(~array.base, ~array.offset + 4 * ~startIndex, 4);~temp~0 := #t~mem4;havoc #t~mem4;call #t~mem5 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4);call write~int(#t~mem5, ~array.base, ~array.offset + 4 * ~startIndex, 4);havoc #t~mem5;call write~int(~temp~0, ~array.base, ~array.offset + 4 * ~minIndex~0, 4); 746#L22 call selectionSort(~array.base, ~array.offset, 1 + ~startIndex, ~size);< 753#selectionSortENTRY ~array.base, ~array.offset := #in~array.base, #in~array.offset;~startIndex := #in~startIndex;~size := #in~size; 754#L11 assume !(~startIndex >= ~size - 1);~minIndex~0 := ~startIndex;~index~0 := 1 + ~startIndex; 758#L14-3 [2019-12-07 10:36:03,575 INFO L796 eck$LassoCheckResult]: Loop: 758#L14-3 assume !!(~index~0 < ~size);call #t~mem2 := read~int(~array.base, ~array.offset + 4 * ~index~0, 4);call #t~mem3 := read~int(~array.base, ~array.offset + 4 * ~minIndex~0, 4); 745#L16 assume #t~mem2 < #t~mem3;havoc #t~mem2;havoc #t~mem3;~minIndex~0 := ~index~0; 747#L14-2 #t~post1 := ~index~0;~index~0 := 1 + #t~post1;havoc #t~post1; 758#L14-3 [2019-12-07 10:36:03,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,575 INFO L82 PathProgramCache]: Analyzing trace with hash 349648920, now seen corresponding path program 2 times [2019-12-07 10:36:03,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:03,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319620734] [2019-12-07 10:36:03,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,610 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:03,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,610 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 3 times [2019-12-07 10:36:03,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:03,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920139581] [2019-12-07 10:36:03,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:03,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:03,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1095320754, now seen corresponding path program 1 times [2019-12-07 10:36:03,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:36:03,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60251006] [2019-12-07 10:36:03,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:36:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:36:03,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:36:03,830 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-12-07 10:36:04,000 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2019-12-07 10:36:04,224 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-12-07 10:36:04,625 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2019-12-07 10:36:04,693 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:36:04,693 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:36:04,693 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:36:04,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:36:04,693 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:36:04,693 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:04,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:36:04,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:36:04,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration8_Lasso [2019-12-07 10:36:04,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:36:04,694 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:36:04,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:04,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:36:05,187 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:36:05,187 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:05,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:05,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:05,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:05,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:05,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:05,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:05,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:05,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:05,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:05,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:05,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:36:05,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:36:05,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:36:05,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 10:36:05,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:36:05,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:36:05,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:36:05,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:36:05,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:36:05,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:36:05,247 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:36:05,284 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-12-07 10:36:05,284 INFO L444 ModelExtractionUtils]: 11 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff2c5a1a-5dd1-4ca5-a3f9-b102840e26e1/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:36:05,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:36:05,288 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 10:36:05,288 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:36:05,288 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(selectionSort_~index~0, selectionSort_~size) = -1*selectionSort_~index~0 + 1*selectionSort_~size Supporting invariants [] [2019-12-07 10:36:05,333 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2019-12-07 10:36:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,361 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,363 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,368 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,368 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:05,375 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:36:05,375 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 10:36:05,387 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 43 states and 55 transitions. Complement of second has 8 states. [2019-12-07 10:36:05,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:36:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 10:36:05,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 24 letters. Loop has 3 letters. [2019-12-07 10:36:05,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:05,388 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:36:05,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,415 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,416 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,422 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,422 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:05,429 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:36:05,429 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 10:36:05,441 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 43 states and 55 transitions. Complement of second has 8 states. [2019-12-07 10:36:05,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:36:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 10:36:05,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 24 letters. Loop has 3 letters. [2019-12-07 10:36:05,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:05,442 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:36:05,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:36:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,473 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,474 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:36:05,481 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:36:05,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:36:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:36:05,490 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 10:36:05,490 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-12-07 10:36:05,502 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 36 states and 47 transitions. Complement of second has 7 states. [2019-12-07 10:36:05,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:36:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:36:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-12-07 10:36:05,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 24 letters. Loop has 3 letters. [2019-12-07 10:36:05,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:05,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 27 letters. Loop has 3 letters. [2019-12-07 10:36:05,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:05,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 24 letters. Loop has 6 letters. [2019-12-07 10:36:05,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:36:05,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-12-07 10:36:05,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:36:05,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:36:05,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:36:05,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:36:05,506 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 10:36:05,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:36:05,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:36:05,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:36:05,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:36:05 BoogieIcfgContainer [2019-12-07 10:36:05,511 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:36:05,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:36:05,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:36:05,511 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:36:05,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:35:59" (3/4) ... [2019-12-07 10:36:05,515 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:36:05,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:36:05,516 INFO L168 Benchmark]: Toolchain (without parser) took 6405.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 944.8 MB in the beginning and 845.7 MB in the end (delta: 99.1 MB). Peak memory consumption was 298.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:36:05,516 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:36:05,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:36:05,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:36:05,517 INFO L168 Benchmark]: Boogie Preprocessor took 16.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:36:05,518 INFO L168 Benchmark]: RCFGBuilder took 183.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:36:05,518 INFO L168 Benchmark]: BuchiAutomizer took 5986.17 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 845.7 MB in the end (delta: 217.6 MB). Peak memory consumption was 325.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:36:05,519 INFO L168 Benchmark]: Witness Printer took 3.73 ms. Allocated memory is still 1.2 GB. Free memory is still 845.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:36:05,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5986.17 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 107.5 MB). Free memory was 1.1 GB in the beginning and 845.7 MB in the end (delta: 217.6 MB). Peak memory consumption was 325.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.73 ms. Allocated memory is still 1.2 GB. Free memory is still 845.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + unknown-#length-unknown[a] and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(startIndex) + \old(size) and consists of 4 locations. One deterministic module has affine ranking function -1 * index + size and consists of 4 locations. One nondeterministic module has affine ranking function -1 * index + size and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 5.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 7. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 118 SDtfs, 135 SDslu, 119 SDs, 0 SdLazy, 244 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU2 SILI1 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital189 mio100 ax100 hnf99 lsp96 ukn71 mio100 lsp63 div100 bol100 ite100 ukn100 eq163 hnf89 smp94 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...