./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 0.1.24-678e011 [2019-11-20 00:07:27,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:07:27,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:07:27,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:07:27,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:07:27,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:07:27,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:07:27,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:07:27,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:07:27,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:07:27,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:07:27,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:07:27,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:07:27,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:07:27,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:07:27,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:07:27,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:07:27,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:07:27,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:07:27,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:07:27,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:07:27,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:07:27,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:07:27,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:07:27,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:07:27,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:07:27,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:07:27,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:07:27,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:07:27,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:07:27,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:07:27,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:07:27,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:07:27,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:07:27,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:07:27,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:07:27,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:07:27,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:07:27,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:07:27,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:07:27,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:07:27,614 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 00:07:27,634 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:07:27,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:07:27,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:07:27,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:07:27,636 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:07:27,636 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 00:07:27,637 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 00:07:27,637 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 00:07:27,637 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 00:07:27,637 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 00:07:27,637 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 00:07:27,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:07:27,638 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:07:27,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:07:27,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:07:27,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 00:07:27,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 00:07:27,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 00:07:27,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:07:27,639 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 00:07:27,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:07:27,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 00:07:27,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:07:27,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:07:27,641 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 00:07:27,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:07:27,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:07:27,641 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 00:07:27,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 00:07:27,642 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_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:27,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:07:27,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:07:27,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:07:27,790 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:07:27,790 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:07:27,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2019-11-20 00:07:27,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/data/d46610154/961ce608a5094abe9ada90f71830168c/FLAG4c259aa73 [2019-11-20 00:07:28,223 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:07:28,224 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/sv-benchmarks/c/termination-recursive-malloc/selectionSort_recursive.i [2019-11-20 00:07:28,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/data/d46610154/961ce608a5094abe9ada90f71830168c/FLAG4c259aa73 [2019-11-20 00:07:28,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/bin/uautomizer/data/d46610154/961ce608a5094abe9ada90f71830168c [2019-11-20 00:07:28,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:07:28,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:07:28,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:07:28,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:07:28,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:07:28,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebecafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28, skipping insertion in model container [2019-11-20 00:07:28,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,256 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:07:28,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:07:28,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:07:28,477 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:07:28,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:07:28,508 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:07:28,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28 WrapperNode [2019-11-20 00:07:28,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:07:28,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:07:28,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:07:28,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:07:28,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:07:28,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:07:28,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:07:28,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:07:28,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... [2019-11-20 00:07:28,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:07:28,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:07:28,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:07:28,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:07:28,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:07:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:07:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure selectionSort [2019-11-20 00:07:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure selectionSort [2019-11-20 00:07:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:07:28,892 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:07:28,892 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 00:07:28,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:28 BoogieIcfgContainer [2019-11-20 00:07:28,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:07:28,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 00:07:28,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 00:07:28,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 00:07:28,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:07:28,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:07:28" (1/3) ... [2019-11-20 00:07:28,900 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a990b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:07:28, skipping insertion in model container [2019-11-20 00:07:28,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:07:28,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:28" (2/3) ... [2019-11-20 00:07:28,915 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a990b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:07:28, skipping insertion in model container [2019-11-20 00:07:28,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 00:07:28,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:28" (3/3) ... [2019-11-20 00:07:28,916 INFO L371 chiAutomizerObserver]: Analyzing ICFG selectionSort_recursive.i [2019-11-20 00:07:28,974 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 00:07:28,974 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 00:07:28,974 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 00:07:28,974 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:07:28,974 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:07:28,975 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 00:07:28,975 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:07:28,975 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 00:07:28,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-20 00:07:29,027 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 00:07:29,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:29,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:29,035 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 00:07:29,036 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:07:29,036 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 00:07:29,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-20 00:07:29,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 00:07:29,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:29,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:29,041 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 00:07:29,042 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 00:07:29,050 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 9#L31true assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 16#L36-3true [2019-11-20 00:07:29,051 INFO L796 eck$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 [2019-11-20 00:07:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:29,057 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-20 00:07:29,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:29,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977271909] [2019-11-20 00:07:29,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2019-11-20 00:07:29,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:29,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419704595] [2019-11-20 00:07:29,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:29,263 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2019-11-20 00:07:29,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:29,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785008880] [2019-11-20 00:07:29,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:29,330 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:29,517 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:07:29,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:07:29,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:07:29,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:07:29,519 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:07:29,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:29,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:07:29,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:07:29,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration1_Lasso [2019-11-20 00:07:29,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:07:29,521 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:07:29,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:29,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:29,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:29,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:29,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:29,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:30,046 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:07:30,051 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:30,068 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 [2019-11-20 00:07:30,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:30,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:30,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:30,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:30,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:30,097 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 [2019-11-20 00:07:30,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:30,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:30,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:30,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:30,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:30,114 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 [2019-11-20 00:07:30,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:30,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:30,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:30,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:30,134 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 [2019-11-20 00:07:30,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,137 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-20 00:07:30,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,143 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-20 00:07:30,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:30,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:30,171 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 [2019-11-20 00:07:30,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:30,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:30,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:30,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:30,194 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 [2019-11-20 00:07:30,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:30,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:30,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:30,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:30,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:30,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:30,220 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:07:30,261 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-20 00:07:30,262 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_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:30,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 00:07:30,283 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 00:07:30,283 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:07:30,284 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] [2019-11-20 00:07:30,307 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 00:07:30,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 00:07:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:30,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:07:30,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:30,402 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:07:30,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:30,447 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 [2019-11-20 00:07:30,449 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2019-11-20 00:07:30,550 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. [2019-11-20 00:07:30,552 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 [2019-11-20 00:07:30,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:07:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-11-20 00:07:30,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 00:07:30,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:30,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 00:07:30,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:30,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-20 00:07:30,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:30,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 53 transitions. [2019-11-20 00:07:30,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 00:07:30,583 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 14 states and 19 transitions. [2019-11-20 00:07:30,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 00:07:30,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-20 00:07:30,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-11-20 00:07:30,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:07:30,586 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-20 00:07:30,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-11-20 00:07:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-20 00:07:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-20 00:07:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2019-11-20 00:07:30,616 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-20 00:07:30,616 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-11-20 00:07:30,616 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 00:07:30,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2019-11-20 00:07:30,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 00:07:30,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:30,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:30,619 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 00:07:30,619 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 00:07:30,620 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 130#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 131#L36-3 assume !(main_~i~0 < main_~n~0); 124#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 127#selectionSortENTRY [2019-11-20 00:07:30,620 INFO L796 eck$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 [2019-11-20 00:07:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:30,621 INFO L82 PathProgramCache]: Analyzing trace with hash 28695915, now seen corresponding path program 1 times [2019-11-20 00:07:30,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:30,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532263479] [2019-11-20 00:07:30,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:30,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532263479] [2019-11-20 00:07:30,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:30,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:07:30,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768903478] [2019-11-20 00:07:30,704 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 00:07:30,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:30,705 INFO L82 PathProgramCache]: Analyzing trace with hash 53570596, now seen corresponding path program 1 times [2019-11-20 00:07:30,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:30,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694382616] [2019-11-20 00:07:30,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:30,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694382616] [2019-11-20 00:07:30,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:30,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:07:30,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107654141] [2019-11-20 00:07:30,749 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 00:07:30,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:30,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:07:30,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:07:30,753 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-11-20 00:07:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:30,774 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2019-11-20 00:07:30,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:07:30,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2019-11-20 00:07:30,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:30,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2019-11-20 00:07:30,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 00:07:30,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 00:07:30,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2019-11-20 00:07:30,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:07:30,778 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-20 00:07:30,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2019-11-20 00:07:30,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-20 00:07:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 00:07:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-11-20 00:07:30,787 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-20 00:07:30,787 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-20 00:07:30,788 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 00:07:30,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-11-20 00:07:30,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:30,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:30,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:30,791 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 00:07:30,791 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:30,791 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 165#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6; 166#L31 assume !(main_~n~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 167#L36-3 assume !(main_~i~0 < main_~n~0); 160#L36-4 call selectionSort(main_~a~0.base, main_~a~0.offset, 0, main_~n~0);< 163#selectionSortENTRY [2019-11-20 00:07:30,792 INFO L796 eck$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 [2019-11-20 00:07:30,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:30,793 INFO L82 PathProgramCache]: Analyzing trace with hash 28695915, now seen corresponding path program 2 times [2019-11-20 00:07:30,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:30,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823953558] [2019-11-20 00:07:30,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:30,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823953558] [2019-11-20 00:07:30,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:07:30,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:07:30,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302365557] [2019-11-20 00:07:30,824 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 00:07:30,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:30,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 1 times [2019-11-20 00:07:30,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:30,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892688397] [2019-11-20 00:07:30,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:30,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:31,108 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-11-20 00:07:31,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:07:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:07:31,323 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-20 00:07:31,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:31,336 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-20 00:07:31,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:07:31,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-11-20 00:07:31,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:31,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 19 transitions. [2019-11-20 00:07:31,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 00:07:31,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 00:07:31,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2019-11-20 00:07:31,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:07:31,341 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-20 00:07:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2019-11-20 00:07:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-11-20 00:07:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 00:07:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-11-20 00:07:31,346 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-20 00:07:31,346 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-20 00:07:31,347 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 00:07:31,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-11-20 00:07:31,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:31,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:31,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:31,349 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:31,349 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:31,349 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 [2019-11-20 00:07:31,349 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 [2019-11-20 00:07:31,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:31,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996941, now seen corresponding path program 1 times [2019-11-20 00:07:31,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:31,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374117718] [2019-11-20 00:07:31,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:31,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:31,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 2 times [2019-11-20 00:07:31,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:31,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430325805] [2019-11-20 00:07:31,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:31,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:31,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:31,442 INFO L82 PathProgramCache]: Analyzing trace with hash 170190416, now seen corresponding path program 1 times [2019-11-20 00:07:31,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:31,456 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413454501] [2019-11-20 00:07:31,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:07:31,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413454501] [2019-11-20 00:07:31,540 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572159699] [2019-11-20 00:07:31,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:31,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 00:07:31,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:07:31,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:07:31,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-11-20 00:07:31,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793767002] [2019-11-20 00:07:31,824 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-11-20 00:07:32,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:32,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 00:07:32,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-20 00:07:32,000 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 10 states. [2019-11-20 00:07:32,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:32,097 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2019-11-20 00:07:32,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 00:07:32,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2019-11-20 00:07:32,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:32,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 21 transitions. [2019-11-20 00:07:32,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 00:07:32,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 00:07:32,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2019-11-20 00:07:32,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:07:32,101 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-20 00:07:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2019-11-20 00:07:32,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 00:07:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 00:07:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 00:07:32,103 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 00:07:32,103 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 00:07:32,103 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 00:07:32,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2019-11-20 00:07:32,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 00:07:32,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:32,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:32,104 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-20 00:07:32,104 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:32,104 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 [2019-11-20 00:07:32,104 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 [2019-11-20 00:07:32,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:32,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1357299119, now seen corresponding path program 2 times [2019-11-20 00:07:32,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:32,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635513786] [2019-11-20 00:07:32,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:32,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:32,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1756570492, now seen corresponding path program 3 times [2019-11-20 00:07:32,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:32,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000890560] [2019-11-20 00:07:32,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:32,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:32,198 INFO L82 PathProgramCache]: Analyzing trace with hash -290845646, now seen corresponding path program 2 times [2019-11-20 00:07:32,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:32,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548960596] [2019-11-20 00:07:32,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:32,290 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:32,485 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-11-20 00:07:32,862 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-11-20 00:07:33,058 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:07:33,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:07:33,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:07:33,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:07:33,059 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:07:33,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:07:33,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:07:33,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration5_Lasso [2019-11-20 00:07:33,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:07:33,060 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:07:33,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:33,531 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:07:33,531 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:33,536 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 [2019-11-20 00:07:33,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:33,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:33,550 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 [2019-11-20 00:07:33,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:33,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:33,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:33,578 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 [2019-11-20 00:07:33,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:33,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:33,594 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 [2019-11-20 00:07:33,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:33,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,616 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 [2019-11-20 00:07:33,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,631 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 [2019-11-20 00:07:33,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,646 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 [2019-11-20 00:07:33,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,663 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 [2019-11-20 00:07:33,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,678 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 [2019-11-20 00:07:33,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:33,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,719 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 [2019-11-20 00:07:33,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:33,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,776 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 [2019-11-20 00:07:33,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,788 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 [2019-11-20 00:07:33,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,803 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 [2019-11-20 00:07:33,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,813 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 [2019-11-20 00:07:33,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:33,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,830 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 [2019-11-20 00:07:33,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,843 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 [2019-11-20 00:07:33,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,854 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 [2019-11-20 00:07:33,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:33,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:33,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,879 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 [2019-11-20 00:07:33,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,890 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 [2019-11-20 00:07:33,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,902 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 [2019-11-20 00:07:33,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,916 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 [2019-11-20 00:07:33,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,926 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 [2019-11-20 00:07:33,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,943 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 [2019-11-20 00:07:33,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,959 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 [2019-11-20 00:07:33,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:33,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:33,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:33,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:33,969 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 [2019-11-20 00:07:33,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:33,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:33,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:33,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:33,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:33,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:33,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:07:34,037 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-20 00:07:34,037 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_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:34,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:34,044 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 00:07:34,045 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:07:34,045 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 [] [2019-11-20 00:07:34,055 INFO L297 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2019-11-20 00:07:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:34,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:34,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:34,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 00:07:34,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:07:34,208 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 [2019-11-20 00:07:34,208 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-20 00:07:34,269 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. [2019-11-20 00:07:34,270 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 [2019-11-20 00:07:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 00:07:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-20 00:07:34,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2019-11-20 00:07:34,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:34,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 8 letters. [2019-11-20 00:07:34,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:34,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 16 letters. [2019-11-20 00:07:34,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:34,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2019-11-20 00:07:34,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 00:07:34,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 35 states and 44 transitions. [2019-11-20 00:07:34,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 00:07:34,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 00:07:34,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2019-11-20 00:07:34,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:07:34,276 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-11-20 00:07:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2019-11-20 00:07:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 22. [2019-11-20 00:07:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 00:07:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-11-20 00:07:34,284 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-20 00:07:34,284 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-20 00:07:34,284 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 00:07:34,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2019-11-20 00:07:34,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:07:34,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:34,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:34,287 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:34,288 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 00:07:34,288 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 [2019-11-20 00:07:34,288 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 [2019-11-20 00:07:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1305603789, now seen corresponding path program 1 times [2019-11-20 00:07:34,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:34,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473130922] [2019-11-20 00:07:34,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:34,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:34,314 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 1 times [2019-11-20 00:07:34,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:34,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124046244] [2019-11-20 00:07:34,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:34,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:34,322 INFO L82 PathProgramCache]: Analyzing trace with hash -18607689, now seen corresponding path program 1 times [2019-11-20 00:07:34,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:34,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192647018] [2019-11-20 00:07:34,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:34,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:34,582 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-11-20 00:07:34,794 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-11-20 00:07:34,843 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:07:34,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:07:34,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:07:34,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:07:34,844 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:07:34,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:34,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:07:34,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:07:34,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration6_Lasso [2019-11-20 00:07:34,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:07:34,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:07:34,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:34,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:35,377 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:07:35,377 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,385 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 [2019-11-20 00:07:35,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:35,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:35,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:35,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:35,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:35,403 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 [2019-11-20 00:07:35,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:35,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:35,409 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 [2019-11-20 00:07:35,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:35,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:35,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:35,420 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 [2019-11-20 00:07:35,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:35,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,435 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 [2019-11-20 00:07:35,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,444 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 [2019-11-20 00:07:35,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:35,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:35,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,455 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 [2019-11-20 00:07:35,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:35,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,471 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 [2019-11-20 00:07:35,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:35,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:35,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:35,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:35,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:35,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:07:35,545 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-20 00:07:35,546 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_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:35,550 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:35,554 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 00:07:35,554 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:07:35,554 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(selectionSort_~index~0, selectionSort_~size) = -1*selectionSort_~index~0 + 1*selectionSort_~size Supporting invariants [] [2019-11-20 00:07:35,571 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-20 00:07:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:35,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:35,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:35,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:35,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:35,630 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 [2019-11-20 00:07:35,630 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 00:07:35,653 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. [2019-11-20 00:07:35,655 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 [2019-11-20 00:07:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:07:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 00:07:35,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-20 00:07:35,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:35,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-20 00:07:35,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:35,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-20 00:07:35,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:35,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2019-11-20 00:07:35,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:07:35,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 36 transitions. [2019-11-20 00:07:35,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 00:07:35,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 00:07:35,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2019-11-20 00:07:35,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:07:35,659 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-11-20 00:07:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2019-11-20 00:07:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-11-20 00:07:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-20 00:07:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-20 00:07:35,661 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 00:07:35,661 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-20 00:07:35,661 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 00:07:35,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-11-20 00:07:35,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:07:35,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:35,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:35,663 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:35,663 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 00:07:35,663 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 [2019-11-20 00:07:35,664 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 [2019-11-20 00:07:35,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:35,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1445216632, now seen corresponding path program 1 times [2019-11-20 00:07:35,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:35,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712182612] [2019-11-20 00:07:35,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 00:07:35,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712182612] [2019-11-20 00:07:35,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523398958] [2019-11-20 00:07:35,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:35,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 00:07:35,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 00:07:35,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 00:07:35,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 14 [2019-11-20 00:07:35,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429610160] [2019-11-20 00:07:35,882 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 00:07:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:35,882 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 2 times [2019-11-20 00:07:35,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:35,882 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016372572] [2019-11-20 00:07:35,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:35,889 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:35,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:07:35,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 00:07:35,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-11-20 00:07:35,928 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 15 states. [2019-11-20 00:07:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:07:36,100 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2019-11-20 00:07:36,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-20 00:07:36,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 64 transitions. [2019-11-20 00:07:36,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:07:36,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 36 states and 45 transitions. [2019-11-20 00:07:36,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 00:07:36,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 00:07:36,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2019-11-20 00:07:36,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 00:07:36,104 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-11-20 00:07:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2019-11-20 00:07:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-11-20 00:07:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 00:07:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-20 00:07:36,107 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-20 00:07:36,107 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-20 00:07:36,107 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 00:07:36,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-11-20 00:07:36,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 00:07:36,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 00:07:36,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 00:07:36,109 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:07:36,109 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 00:07:36,109 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 [2019-11-20 00:07:36,109 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 [2019-11-20 00:07:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:36,109 INFO L82 PathProgramCache]: Analyzing trace with hash 349648920, now seen corresponding path program 2 times [2019-11-20 00:07:36,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:36,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759197269] [2019-11-20 00:07:36,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:36,149 INFO L82 PathProgramCache]: Analyzing trace with hash 67625, now seen corresponding path program 3 times [2019-11-20 00:07:36,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:36,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213675643] [2019-11-20 00:07:36,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,155 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:36,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1095320754, now seen corresponding path program 1 times [2019-11-20 00:07:36,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:07:36,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714880560] [2019-11-20 00:07:36,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:07:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:07:36,231 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:07:36,471 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-11-20 00:07:36,687 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2019-11-20 00:07:36,962 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-11-20 00:07:37,374 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2019-11-20 00:07:37,458 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 00:07:37,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 00:07:37,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 00:07:37,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 00:07:37,459 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 00:07:37,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:37,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 00:07:37,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 00:07:37,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionSort_recursive.i_Iteration8_Lasso [2019-11-20 00:07:37,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 00:07:37,459 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 00:07:37,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,675 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-11-20 00:07:37,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:37,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 00:07:38,099 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 00:07:38,099 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:38,108 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 [2019-11-20 00:07:38,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:38,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:38,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:38,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:38,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:38,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:38,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:38,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:38,124 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 [2019-11-20 00:07:38,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:38,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:38,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:38,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:38,131 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 [2019-11-20 00:07:38,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:38,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:38,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:38,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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 [2019-11-20 00:07:38,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 00:07:38,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 00:07:38,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 00:07:38,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 00:07:38,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:38,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:38,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 00:07:38,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 00:07:38,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 00:07:38,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 00:07:38,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 00:07:38,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 00:07:38,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 00:07:38,208 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-20 00:07:38,208 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_99474094-d74e-4e60-9630-82cc33726bd7/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) [2019-11-20 00:07:38,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 00:07:38,213 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 00:07:38,213 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 00:07:38,213 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(selectionSort_~index~0, selectionSort_~size) = -1*selectionSort_~index~0 + 1*selectionSort_~size Supporting invariants [] [2019-11-20 00:07:38,252 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2019-11-20 00:07:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:38,316 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 [2019-11-20 00:07:38,316 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 00:07:38,334 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. [2019-11-20 00:07:38,335 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 [2019-11-20 00:07:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:07:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 00:07:38,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 00:07:38,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:38,336 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 00:07:38,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:38,397 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 [2019-11-20 00:07:38,397 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 00:07:38,412 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. [2019-11-20 00:07:38,414 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 [2019-11-20 00:07:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:07:38,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-11-20 00:07:38,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 00:07:38,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:38,415 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 00:07:38,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:07:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:07:38,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 00:07:38,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:07:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:07:38,498 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 [2019-11-20 00:07:38,498 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 00:07:38,520 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. [2019-11-20 00:07:38,522 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 [2019-11-20 00:07:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 00:07:38,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-11-20 00:07:38,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 00:07:38,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:38,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 27 letters. Loop has 3 letters. [2019-11-20 00:07:38,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:38,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 24 letters. Loop has 6 letters. [2019-11-20 00:07:38,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 00:07:38,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-11-20 00:07:38,525 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:07:38,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-11-20 00:07:38,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 00:07:38,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 00:07:38,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 00:07:38,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 00:07:38,525 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:07:38,525 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:07:38,525 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:07:38,526 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 00:07:38,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:07:38,526 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 00:07:38,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 00:07:38,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:07:38 BoogieIcfgContainer [2019-11-20 00:07:38,532 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 00:07:38,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:07:38,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:07:38,533 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:07:38,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:07:28" (3/4) ... [2019-11-20 00:07:38,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:07:38,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:07:38,538 INFO L168 Benchmark]: Toolchain (without parser) took 10295.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 946.1 MB in the beginning and 817.0 MB in the end (delta: 129.0 MB). Peak memory consumption was 321.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:38,538 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:07:38,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:38,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.59 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. [2019-11-20 00:07:38,539 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 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. [2019-11-20 00:07:38,539 INFO L168 Benchmark]: RCFGBuilder took 326.89 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:38,540 INFO L168 Benchmark]: BuchiAutomizer took 9639.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.1 GB in the beginning and 817.0 MB in the end (delta: 258.4 MB). Peak memory consumption was 346.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:07:38,540 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 817.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:07:38,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.59 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 23.99 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. * RCFGBuilder took 326.89 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9639.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.1 MB). Free memory was 1.1 GB in the beginning and 817.0 MB in the end (delta: 258.4 MB). Peak memory consumption was 346.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 817.0 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 9.5s and 9 iterations. TraceHistogramMax:3. Analysis of lassos took 8.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. 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, 0.2s 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: 23ms 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...