./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be --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 ffc745103ed55cbf924659873c1ffa566d33874f07e41d755dd0e85e8b4a5c0d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:13:16,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:13:16,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:13:16,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:13:16,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:13:16,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:13:16,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:13:16,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:13:16,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:13:16,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:13:16,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:13:16,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:13:16,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:13:16,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:13:16,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:13:16,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:13:16,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:13:16,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:13:16,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:13:16,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:13:16,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:13:16,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:13:16,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:13:16,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:13:16,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:13:16,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:13:16,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:13:16,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:13:16,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:13:16,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:13:16,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:13:16,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:13:16,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:13:16,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:13:16,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:13:16,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:13:16,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:13:16,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:13:16,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:13:16,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:13:16,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:13:16,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:13:16,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:13:16,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:13:16,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:13:16,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:13:16,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:13:16,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:13:16,388 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:13:16,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:13:16,389 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:13:16,389 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:13:16,391 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:13:16,391 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:13:16,391 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:13:16,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:13:16,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:13:16,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:13:16,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:13:16,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:13:16,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:13:16,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:13:16,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:13:16,394 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:13:16,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:13:16,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:13:16,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:13:16,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:13:16,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:13:16,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:13:16,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:13:16,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:13:16,400 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffc745103ed55cbf924659873c1ffa566d33874f07e41d755dd0e85e8b4a5c0d [2021-10-21 20:13:16,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:13:16,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:13:16,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:13:16,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:13:16,745 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:13:16,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2021-10-21 20:13:16,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/data/321ed8867/973faae550f6469699b5346ead551275/FLAGd0912aee5 [2021-10-21 20:13:17,451 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:13:17,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/sv-benchmarks/c/termination-memory-alloca/selectionsort-alloca-2.i [2021-10-21 20:13:17,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/data/321ed8867/973faae550f6469699b5346ead551275/FLAGd0912aee5 [2021-10-21 20:13:17,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/data/321ed8867/973faae550f6469699b5346ead551275 [2021-10-21 20:13:17,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:13:17,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:13:17,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:17,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:13:17,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:13:17,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:17" (1/1) ... [2021-10-21 20:13:17,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589889e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:17, skipping insertion in model container [2021-10-21 20:13:17,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:17" (1/1) ... [2021-10-21 20:13:17,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:13:17,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:13:18,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:18,148 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:13:18,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:18,257 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:13:18,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18 WrapperNode [2021-10-21 20:13:18,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:18,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:18,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:13:18,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:13:18,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:18,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:13:18,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:13:18,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:13:18,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:13:18,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:13:18,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:13:18,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:13:18,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (1/1) ... [2021-10-21 20:13:18,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:18,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:18,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:18,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:13:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:13:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:13:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:13:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:13:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:13:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:13:18,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:13:18,644 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-21 20:13:18,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:18 BoogieIcfgContainer [2021-10-21 20:13:18,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:13:18,647 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:13:18,647 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:13:18,651 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:13:18,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:18,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:13:17" (1/3) ... [2021-10-21 20:13:18,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2aa8d969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:13:18, skipping insertion in model container [2021-10-21 20:13:18,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:18,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:18" (2/3) ... [2021-10-21 20:13:18,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2aa8d969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:13:18, skipping insertion in model container [2021-10-21 20:13:18,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:18,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:18" (3/3) ... [2021-10-21 20:13:18,656 INFO L389 chiAutomizerObserver]: Analyzing ICFG selectionsort-alloca-2.i [2021-10-21 20:13:18,704 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:13:18,705 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:13:18,705 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:13:18,705 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:13:18,705 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:13:18,705 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:13:18,706 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:13:18,706 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:13:18,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:18,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:13:18,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:18,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:18,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:13:18,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:13:18,775 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:13:18,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:18,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:13:18,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:18,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:18,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:13:18,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:13:18,803 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 11#L566true assume !(main_~array_size~0 < 1); 13#L566-2true call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 8#L550-3true [2021-10-21 20:13:18,803 INFO L793 eck$LassoCheckResult]: Loop: 8#L550-3true assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 14#L554-3true assume !true; 10#L554-4true call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 15#L550-2true SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 8#L550-3true [2021-10-21 20:13:18,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:18,824 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-21 20:13:18,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:18,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059637664] [2021-10-21 20:13:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:18,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:18,952 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:19,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1463796, now seen corresponding path program 1 times [2021-10-21 20:13:19,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346387622] [2021-10-21 20:13:19,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:19,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:19,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346387622] [2021-10-21 20:13:19,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346387622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:19,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:19,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:13:19,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320215040] [2021-10-21 20:13:19,130 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:13:19,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:19,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:13:19,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:13:19,161 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:19,169 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-10-21 20:13:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:13:19,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-10-21 20:13:19,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:13:19,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2021-10-21 20:13:19,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 20:13:19,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 20:13:19,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-21 20:13:19,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:13:19,182 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:13:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-21 20:13:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-21 20:13:19,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-21 20:13:19,215 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:13:19,215 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:13:19,215 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:13:19,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-21 20:13:19,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-21 20:13:19,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:19,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:19,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:13:19,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:13:19,219 INFO L791 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 37#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 44#L566 assume !(main_~array_size~0 < 1); 41#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 42#L550-3 [2021-10-21 20:13:19,219 INFO L793 eck$LassoCheckResult]: Loop: 42#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 40#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 43#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 45#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 42#L550-3 [2021-10-21 20:13:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 2 times [2021-10-21 20:13:19,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396094584] [2021-10-21 20:13:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1453225, now seen corresponding path program 1 times [2021-10-21 20:13:19,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92596362] [2021-10-21 20:13:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:19,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:19,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92596362] [2021-10-21 20:13:19,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92596362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:13:19,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:13:19,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:13:19,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185026649] [2021-10-21 20:13:19,337 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:13:19,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:13:19,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:13:19,339 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:19,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:19,359 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2021-10-21 20:13:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:13:19,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-10-21 20:13:19,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:13:19,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 14 transitions. [2021-10-21 20:13:19,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-21 20:13:19,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-21 20:13:19,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2021-10-21 20:13:19,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:13:19,363 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-21 20:13:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2021-10-21 20:13:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 20:13:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-21 20:13:19,366 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-21 20:13:19,366 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-21 20:13:19,366 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:13:19,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-10-21 20:13:19,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-21 20:13:19,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:19,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:19,368 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:13:19,368 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:19,368 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 64#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 71#L566 assume !(main_~array_size~0 < 1); 68#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 69#L550-3 [2021-10-21 20:13:19,370 INFO L793 eck$LassoCheckResult]: Loop: 69#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 70#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 65#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5;SelectionSort_~min~0 := SelectionSort_~j~0; 66#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 67#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 72#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 73#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 69#L550-3 [2021-10-21 20:13:19,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,371 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 3 times [2021-10-21 20:13:19,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713248210] [2021-10-21 20:13:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,382 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,416 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:19,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,417 INFO L82 PathProgramCache]: Analyzing trace with hash 393067660, now seen corresponding path program 1 times [2021-10-21 20:13:19,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984902921] [2021-10-21 20:13:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,452 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:19,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1419424808, now seen corresponding path program 1 times [2021-10-21 20:13:19,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:19,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964514993] [2021-10-21 20:13:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:19,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,549 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:19,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:20,216 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:20,217 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:20,217 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:20,217 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:20,217 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:20,217 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:20,218 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:20,218 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:20,218 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration3_Lasso [2021-10-21 20:13:20,218 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:20,218 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:20,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:20,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:20,846 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:20,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:20,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:20,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:20,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:20,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:20,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:20,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:20,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:20,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:20,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:20,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:20,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:13:20,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:20,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:20,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:20,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:20,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:20,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:20,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:20,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:20,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:20,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:20,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:20,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:20,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:20,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:13:20,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:13:21,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:21,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:21,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:21,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:21,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:13:21,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:21,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:21,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:21,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:21,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:21,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:21,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:21,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:21,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:13:21,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:21,261 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-21 20:13:21,261 INFO L444 ModelExtractionUtils]: 12 out of 40 variables were initially zero. Simplification set additionally 24 variables to zero. [2021-10-21 20:13:21,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:21,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:21,265 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:21,270 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:21,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:13:21,295 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:13:21,295 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:21,296 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~i~0, ULTIMATE.start_SelectionSort_~a.offset, v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1) = -4*ULTIMATE.start_SelectionSort_~i~0 - 1*ULTIMATE.start_SelectionSort_~a.offset + 2*v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_1 Supporting invariants [] [2021-10-21 20:13:21,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:21,350 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-21 20:13:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:21,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:13:21,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:21,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:13:21,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:21,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:21,562 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 [2021-10-21 20:13:21,562 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:21,638 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 24 transitions. Complement of second has 6 states. [2021-10-21 20:13:21,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-21 20:13:21,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 7 letters. [2021-10-21 20:13:21,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:21,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 7 letters. [2021-10-21 20:13:21,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:21,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 14 letters. [2021-10-21 20:13:21,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:21,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2021-10-21 20:13:21,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:21,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 22 transitions. [2021-10-21 20:13:21,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-21 20:13:21,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-21 20:13:21,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2021-10-21 20:13:21,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:21,646 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-10-21 20:13:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2021-10-21 20:13:21,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-21 20:13:21,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2021-10-21 20:13:21,648 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-10-21 20:13:21,649 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-10-21 20:13:21,649 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:13:21,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2021-10-21 20:13:21,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:21,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:21,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:21,650 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:13:21,650 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:13:21,650 INFO L791 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 163#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 174#L566 assume !(main_~array_size~0 < 1); 170#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 171#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 168#L554-3 [2021-10-21 20:13:21,651 INFO L793 eck$LassoCheckResult]: Loop: 168#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 164#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5;SelectionSort_~min~0 := SelectionSort_~j~0; 165#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 168#L554-3 [2021-10-21 20:13:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:21,651 INFO L82 PathProgramCache]: Analyzing trace with hash 28695756, now seen corresponding path program 1 times [2021-10-21 20:13:21,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:21,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816393353] [2021-10-21 20:13:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:21,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,661 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:21,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:21,670 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2021-10-21 20:13:21,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:21,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205230258] [2021-10-21 20:13:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:21,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,679 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:21,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:21,689 INFO L82 PathProgramCache]: Analyzing trace with hash 176800017, now seen corresponding path program 1 times [2021-10-21 20:13:21,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:21,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017734319] [2021-10-21 20:13:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:21,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,702 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:21,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:21,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,105 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:22,106 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:22,106 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:22,106 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:22,106 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:22,106 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,106 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:22,106 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:22,106 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration4_Lasso [2021-10-21 20:13:22,106 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:22,107 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:22,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:22,737 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:22,737 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:22,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,746 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:13:22,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,822 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:13:22,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,895 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:13:22,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:13:22,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:22,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:22,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:22,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:22,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:22,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:22,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:22,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:22,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:22,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:13:22,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:22,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:22,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:22,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:22,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:23,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:23,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:23,057 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:23,103 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-21 20:13:23,103 INFO L444 ModelExtractionUtils]: 9 out of 40 variables were initially zero. Simplification set additionally 27 variables to zero. [2021-10-21 20:13:23,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:23,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,105 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:13:23,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:23,129 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:13:23,129 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:23,130 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~j~0, v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_2) = -4*ULTIMATE.start_SelectionSort_~j~0 + 1*v_rep(select #length ULTIMATE.start_SelectionSort_~a.base)_2 Supporting invariants [1*ULTIMATE.start_SelectionSort_~a.offset >= 0] [2021-10-21 20:13:23,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:23,172 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2021-10-21 20:13:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:13:23,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:23,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:23,298 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 20:13:23,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:23,372 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 47 transitions. Complement of second has 8 states. [2021-10-21 20:13:23,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:23,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-21 20:13:23,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-21 20:13:23,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-21 20:13:23,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-21 20:13:23,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:23,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 47 transitions. [2021-10-21 20:13:23,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:23,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 22 states and 30 transitions. [2021-10-21 20:13:23,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-21 20:13:23,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-21 20:13:23,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2021-10-21 20:13:23,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:23,380 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-10-21 20:13:23,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2021-10-21 20:13:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2021-10-21 20:13:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-21 20:13:23,383 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 20:13:23,383 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-21 20:13:23,383 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:13:23,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-21 20:13:23,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:23,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:23,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:23,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:23,385 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:13:23,385 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 299#L566 assume !(main_~array_size~0 < 1); 294#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 295#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 293#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 289#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5; 290#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 292#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 297#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 298#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 296#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 291#L554-3 [2021-10-21 20:13:23,385 INFO L793 eck$LassoCheckResult]: Loop: 291#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 287#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5;SelectionSort_~min~0 := SelectionSort_~j~0; 288#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 291#L554-3 [2021-10-21 20:13:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1109754407, now seen corresponding path program 1 times [2021-10-21 20:13:23,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342748054] [2021-10-21 20:13:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:23,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:13:23,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342748054] [2021-10-21 20:13:23,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342748054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:23,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288351773] [2021-10-21 20:13:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:13:23,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:23,443 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:13:23,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 20:13:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:23,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:23,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:23,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288351773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:13:23,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:13:23,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 20:13:23,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575820753] [2021-10-21 20:13:23,582 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:13:23,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 2 times [2021-10-21 20:13:23,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315331590] [2021-10-21 20:13:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,602 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:23,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:13:23,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:13:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:13:23,713 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:13:23,773 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2021-10-21 20:13:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:13:23,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2021-10-21 20:13:23,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:23,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 35 transitions. [2021-10-21 20:13:23,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-21 20:13:23,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-21 20:13:23,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 35 transitions. [2021-10-21 20:13:23,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:13:23,778 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-10-21 20:13:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 35 transitions. [2021-10-21 20:13:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2021-10-21 20:13:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:23,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-10-21 20:13:23,781 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-21 20:13:23,781 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-21 20:13:23,781 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:13:23,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-10-21 20:13:23,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:13:23,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:23,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:23,783 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:13:23,783 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:13:23,784 INFO L791 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 376#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet8;havoc main_#t~nondet8; 387#L566 assume !(main_~array_size~0 < 1); 383#L566-2 call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;SelectionSort_#in~a.base, SelectionSort_#in~a.offset, SelectionSort_#in~array_size := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc SelectionSort_#t~mem4, SelectionSort_#t~mem5, SelectionSort_#t~pre3, SelectionSort_#t~mem6, SelectionSort_#t~mem7, SelectionSort_#t~pre2, SelectionSort_~j~0, SelectionSort_~min~0, SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset, SelectionSort_~array_size, SelectionSort_~i~0;SelectionSort_~a.base, SelectionSort_~a.offset := SelectionSort_#in~a.base, SelectionSort_#in~a.offset;SelectionSort_~array_size := SelectionSort_#in~array_size;havoc SelectionSort_~i~0;SelectionSort_~i~0 := 0; 384#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 385#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 379#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5; 380#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 382#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 391#L556 assume !(SelectionSort_#t~mem4 < SelectionSort_#t~mem5);havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5; 392#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 390#L554-3 assume !(SelectionSort_~j~0 < SelectionSort_~array_size); 388#L554-4 call SelectionSort_#t~mem6 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);SelectionSort_~temp~0 := SelectionSort_#t~mem6;havoc SelectionSort_#t~mem6;call SelectionSort_#t~mem7 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4);call write~int(SelectionSort_#t~mem7, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~i~0, 4);havoc SelectionSort_#t~mem7;call write~int(SelectionSort_~temp~0, SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 389#L550-2 SelectionSort_#t~pre2 := 1 + SelectionSort_~i~0;SelectionSort_~i~0 := 1 + SelectionSort_~i~0;havoc SelectionSort_#t~pre2; 386#L550-3 assume !!(SelectionSort_~i~0 < SelectionSort_~array_size - 1);havoc SelectionSort_~j~0;havoc SelectionSort_~min~0;havoc SelectionSort_~temp~0;SelectionSort_~min~0 := SelectionSort_~i~0;SelectionSort_~j~0 := 1 + SelectionSort_~i~0; 381#L554-3 [2021-10-21 20:13:23,784 INFO L793 eck$LassoCheckResult]: Loop: 381#L554-3 assume !!(SelectionSort_~j~0 < SelectionSort_~array_size);call SelectionSort_#t~mem4 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~j~0, 4);call SelectionSort_#t~mem5 := read~int(SelectionSort_~a.base, SelectionSort_~a.offset + 4 * SelectionSort_~min~0, 4); 377#L556 assume SelectionSort_#t~mem4 < SelectionSort_#t~mem5;havoc SelectionSort_#t~mem4;havoc SelectionSort_#t~mem5;SelectionSort_~min~0 := SelectionSort_~j~0; 378#L554-2 SelectionSort_#t~pre3 := 1 + SelectionSort_~j~0;SelectionSort_~j~0 := 1 + SelectionSort_~j~0;havoc SelectionSort_#t~pre3; 381#L554-3 [2021-10-21 20:13:23,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,785 INFO L82 PathProgramCache]: Analyzing trace with hash -366799804, now seen corresponding path program 2 times [2021-10-21 20:13:23,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122182171] [2021-10-21 20:13:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:23,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,823 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 3 times [2021-10-21 20:13:23,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289405117] [2021-10-21 20:13:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,831 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:23,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:23,838 INFO L82 PathProgramCache]: Analyzing trace with hash -936135015, now seen corresponding path program 1 times [2021-10-21 20:13:23,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:23,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116230388] [2021-10-21 20:13:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:23,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,857 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:23,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:24,567 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:13:24,568 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:13:24,568 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:13:24,568 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:13:24,568 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:13:24,568 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:24,568 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:13:24,568 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:13:24,568 INFO L133 ssoRankerPreferences]: Filename of dumped script: selectionsort-alloca-2.i_Iteration6_Lasso [2021-10-21 20:13:24,568 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:13:24,568 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:13:24,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:24,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:13:25,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:13:25,170 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:13:25,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,173 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:13:25,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,265 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:25,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:25,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:25,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:13:25,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,330 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:13:25,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,400 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:25,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:25,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:25,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:13:25,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,465 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:13:25,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:25,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:25,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:25,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,507 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:13:25,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:13:25,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,676 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:13:25,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,744 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:13:25,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:13:25,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:13:25,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:13:25,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:13:25,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-21 20:13:25,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,783 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:13:25,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:13:25,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:13:25,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:13:25,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:13:25,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:13:25,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:13:25,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:13:25,830 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:13:25,886 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-10-21 20:13:25,886 INFO L444 ModelExtractionUtils]: 17 out of 37 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-10-21 20:13:25,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:25,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:25,891 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:25,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:13:25,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:13:25,914 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 20:13:25,914 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:13:25,914 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_SelectionSort_~j~0, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3) = -2*ULTIMATE.start_SelectionSort_~j~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3 Supporting invariants [-2*ULTIMATE.start_SelectionSort_~array_size + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_3 >= 0] [2021-10-21 20:13:25,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:25,975 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-21 20:13:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:26,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:13:26,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:26,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-10-21 20:13:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:26,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:26,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:26,414 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-21 20:13:26,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:26,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-21 20:13:26,547 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 48 transitions. Complement of second has 8 states. [2021-10-21 20:13:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-21 20:13:26,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-21 20:13:26,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:26,548 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:13:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:26,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:13:26,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:26,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-10-21 20:13:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:26,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:26,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:26,951 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-21 20:13:26,952 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:27,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 48 transitions. Complement of second has 8 states. [2021-10-21 20:13:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-21 20:13:27,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-21 20:13:27,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:27,005 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:13:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:27,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:13:27,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:27,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-10-21 20:13:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:13:27,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:13:27,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:13:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:13:27,381 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-21 20:13:27,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:27,629 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 53 transitions. Complement of second has 14 states. [2021-10-21 20:13:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:13:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 32 transitions. [2021-10-21 20:13:27,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 32 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-21 20:13:27,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:27,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-21 20:13:27,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:27,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 32 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-21 20:13:27,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:13:27,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 53 transitions. [2021-10-21 20:13:27,634 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:13:27,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2021-10-21 20:13:27,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:13:27,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:13:27,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:13:27,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:13:27,635 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:13:27,636 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:13:27,636 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:13:27,636 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:13:27,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:13:27,636 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:13:27,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:13:27,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:13:27 BoogieIcfgContainer [2021-10-21 20:13:27,643 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:13:27,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:13:27,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:13:27,644 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:13:27,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:18" (3/4) ... [2021-10-21 20:13:27,647 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:13:27,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:13:27,649 INFO L168 Benchmark]: Toolchain (without parser) took 9913.94 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 80.7 MB in the beginning and 64.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,650 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 113.2 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:27,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.86 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 81.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,651 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 79.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,651 INFO L168 Benchmark]: Boogie Preprocessor took 27.29 ms. Allocated memory is still 113.2 MB. Free memory was 79.9 MB in the beginning and 78.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,652 INFO L168 Benchmark]: RCFGBuilder took 312.35 ms. Allocated memory is still 113.2 MB. Free memory was 78.5 MB in the beginning and 69.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,652 INFO L168 Benchmark]: BuchiAutomizer took 8995.73 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 69.0 MB in the beginning and 64.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 64.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:27,652 INFO L168 Benchmark]: Witness Printer took 4.18 ms. Allocated memory is still 169.9 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:27,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 113.2 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.86 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 81.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 79.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.29 ms. Allocated memory is still 113.2 MB. Free memory was 79.9 MB in the beginning and 78.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 312.35 ms. Allocated memory is still 113.2 MB. Free memory was 78.5 MB in the beginning and 69.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8995.73 ms. Allocated memory was 113.2 MB in the beginning and 169.9 MB in the end (delta: 56.6 MB). Free memory was 69.0 MB in the beginning and 64.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 64.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.18 ms. Allocated memory is still 169.9 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -4 * i + -1 * a + 2 * unknown-#length-unknown[a] and consists of 4 locations. One deterministic module has affine ranking function -4 * j + unknown-#length-unknown[a] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -2 * j and consists of 9 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 25.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 72 SDtfs, 96 SDslu, 69 SDs, 0 SdLazy, 144 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 224.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital188 mio100 ax109 hnf99 lsp87 ukn76 mio100 lsp68 div100 bol100 ite100 ukn100 eq170 hnf91 smp96 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:13:27,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:13:27,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d5cd99b-d048-4f5d-9e5b-214a5878376f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...