./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa --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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:25:04,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:25:04,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:25:04,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:25:04,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:25:04,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:25:04,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:25:04,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:25:04,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:25:04,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:25:04,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:25:04,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:25:04,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:25:04,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:25:04,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:25:04,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:25:04,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:25:04,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:25:04,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:25:04,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:25:04,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:25:04,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:25:04,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:25:04,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:25:04,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:25:04,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:25:04,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:25:04,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:25:04,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:25:04,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:25:04,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:25:04,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:25:04,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:25:04,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:25:04,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:25:04,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:25:04,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:25:04,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:25:04,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:25:04,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:25:04,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:25:04,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 20:25:04,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:25:04,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:25:04,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:25:04,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:25:04,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:25:04,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:25:04,566 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:25:04,567 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 20:25:04,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:25:04,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:25:04,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 20:25:04,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:25:04,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:25:04,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:25:04,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:25:04,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:25:04,570 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 20:25:04,570 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_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2021-12-06 20:25:04,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:25:04,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:25:04,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:25:04,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:25:04,757 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:25:04,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-06 20:25:04,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/data/631f17c82/e36bb7b0a18f41a1b31eac9b8bcbbded/FLAG01a84df4c [2021-12-06 20:25:05,167 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:25:05,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-06 20:25:05,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/data/631f17c82/e36bb7b0a18f41a1b31eac9b8bcbbded/FLAG01a84df4c [2021-12-06 20:25:05,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/data/631f17c82/e36bb7b0a18f41a1b31eac9b8bcbbded [2021-12-06 20:25:05,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:25:05,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:25:05,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:25:05,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:25:05,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:25:05,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a94ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05, skipping insertion in model container [2021-12-06 20:25:05,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:25:05,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:25:05,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:25:05,314 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:25:05,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:25:05,336 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:25:05,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05 WrapperNode [2021-12-06 20:25:05,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:25:05,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:25:05,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:25:05,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:25:05,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,365 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-06 20:25:05,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:25:05,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:25:05,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:25:05,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:25:05,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:25:05,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:25:05,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:25:05,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:25:05,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (1/1) ... [2021-12-06 20:25:05,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:05,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:05,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 20:25:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:25:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:25:05,498 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:25:05,499 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:25:05,547 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:25:05,553 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:25:05,554 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:25:05,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:05 BoogieIcfgContainer [2021-12-06 20:25:05,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:25:05,556 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 20:25:05,556 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 20:25:05,559 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 20:25:05,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:25:05,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 08:25:05" (1/3) ... [2021-12-06 20:25:05,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56294f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:25:05, skipping insertion in model container [2021-12-06 20:25:05,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:25:05,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:25:05" (2/3) ... [2021-12-06 20:25:05,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56294f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:25:05, skipping insertion in model container [2021-12-06 20:25:05,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:25:05,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:05" (3/3) ... [2021-12-06 20:25:05,562 INFO L388 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-12-06 20:25:05,598 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 20:25:05,598 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 20:25:05,598 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 20:25:05,598 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 20:25:05,598 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 20:25:05,599 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 20:25:05,599 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 20:25:05,599 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 20:25:05,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-12-06 20:25:05,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:05,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:25:05,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:25:05,627 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 20:25:05,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 20:25:05,627 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 20:25:05,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-12-06 20:25:05,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:05,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:25:05,628 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:25:05,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 20:25:05,629 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 20:25:05,634 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L17true assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 3#L19-2true [2021-12-06 20:25:05,634 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 10#L19true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 3#L19-2true [2021-12-06 20:25:05,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:05,638 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 20:25:05,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670895037] [2021-12-06 20:25:05,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:05,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,704 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:05,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-12-06 20:25:05,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:05,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867572618] [2021-12-06 20:25:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:05,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,730 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-12-06 20:25:05,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:05,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042634277] [2021-12-06 20:25:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:05,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:05,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:05,806 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:05,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:05,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:05,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:05,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:25:05,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:05,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:05,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-12-06 20:25:05,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:05,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:05,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:05,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:05,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:05,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:05,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:25:05,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:05,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:05,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 20:25:05,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:05,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:05,898 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:05,898 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:05,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:05,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:05,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:05,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 20:25:05,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:05,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:05,935 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:05,935 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:05,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 20:25:05,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:05,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:05,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 20:25:05,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:05,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:05,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 20:25:05,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:05,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:05,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:05,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 20:25:05,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:25:05,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:06,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:25:06,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 20:25:06,126 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:06,126 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:06,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:06,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:06,126 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:25:06,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:06,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:06,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-12-06 20:25:06,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:06,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:06,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,165 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:06,169 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:25:06,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 20:25:06,173 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 [2021-12-06 20:25:06,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:06,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:06,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:06,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 20:25:06,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 20:25:06,226 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 [2021-12-06 20:25:06,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:06,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:06,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:06,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 20:25:06,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,273 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 20:25:06,274 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 [2021-12-06 20:25:06,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:25:06,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:25:06,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:25:06,288 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:25:06,293 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 20:25:06,293 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 20:25:06,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,295 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 20:25:06,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:25:06,332 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:25:06,332 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:25:06,333 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 20:25:06,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:06,362 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:25:06,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:06,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:06,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:06,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:25:06,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:06,472 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:06,473 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 20:25:06,504 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 29 states and 36 transitions. Complement of second has 8 states. [2021-12-06 20:25:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 20:25:06,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-06 20:25:06,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 20:25:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:06,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 20:25:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:06,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 20:25:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:06,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-06 20:25:06,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:06,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-12-06 20:25:06,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 20:25:06,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 20:25:06,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-12-06 20:25:06,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:25:06,518 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 20:25:06,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-12-06 20:25:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-06 20:25:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2021-12-06 20:25:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-12-06 20:25:06,535 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 20:25:06,535 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 20:25:06,535 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 20:25:06,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-12-06 20:25:06,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:06,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:25:06,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:25:06,536 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 20:25:06,536 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 20:25:06,536 INFO L791 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 89#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 86#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 87#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 85#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 81#L19-2 [2021-12-06 20:25:06,536 INFO L793 eck$LassoCheckResult]: Loop: 81#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 82#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 81#L19-2 [2021-12-06 20:25:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:06,536 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2021-12-06 20:25:06,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:06,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161181731] [2021-12-06 20:25:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:06,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:06,541 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:06,545 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:06,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2021-12-06 20:25:06,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670176921] [2021-12-06 20:25:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:06,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:06,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:06,552 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:06,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2021-12-06 20:25:06,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:06,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468316483] [2021-12-06 20:25:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:06,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:06,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:06,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468316483] [2021-12-06 20:25:06,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468316483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:06,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:06,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:25:06,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473333033] [2021-12-06 20:25:06,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:06,609 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:06,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:06,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:06,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:06,609 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:25:06,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:06,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:06,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-12-06 20:25:06,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:06,609 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:06,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,635 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:06,636 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:25:06,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 20:25:06,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:06,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:06,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:06,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:06,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 20:25:06,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,679 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 20:25:06,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:06,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:06,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:06,696 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:06,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 20:25:06,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,720 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 20:25:06,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:06,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:06,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 20:25:06,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,749 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 20:25:06,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:25:06,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:06,882 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:25:06,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:06,885 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:06,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:06,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:06,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:06,885 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:25:06,885 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,885 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:06,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:06,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-12-06 20:25:06,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:06,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:06,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:06,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:06,908 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:25:06,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,909 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 20:25:06,910 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 [2021-12-06 20:25:06,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:06,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:06,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:06,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 20:25:06,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,942 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 20:25:06,943 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 [2021-12-06 20:25:06,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:06,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:06,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:06,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 20:25:06,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,982 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 20:25:06,983 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 [2021-12-06 20:25:06,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:06,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:25:06,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:06,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:06,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:06,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:25:06,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:25:06,994 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:25:06,997 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 20:25:06,997 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 20:25:06,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:06,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:06,998 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:06,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 20:25:06,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:25:06,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:25:06,999 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:25:06,999 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 20:25:07,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 20:25:07,018 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:25:07,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:07,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,037 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 20:25:07,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:07,052 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:07,053 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-12-06 20:25:07,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 5 states. [2021-12-06 20:25:07,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:07,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-12-06 20:25:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-12-06 20:25:07,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 20:25:07,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-06 20:25:07,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-06 20:25:07,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2021-12-06 20:25:07,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:07,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2021-12-06 20:25:07,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 20:25:07,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 20:25:07,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-12-06 20:25:07,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:25:07,063 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-06 20:25:07,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-12-06 20:25:07,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-06 20:25:07,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 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) [2021-12-06 20:25:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-12-06 20:25:07,064 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-06 20:25:07,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:07,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:25:07,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:07,067 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-12-06 20:25:07,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:07,081 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-12-06 20:25:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:25:07,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-12-06 20:25:07,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:07,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 13 transitions. [2021-12-06 20:25:07,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-06 20:25:07,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-06 20:25:07,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-06 20:25:07,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:25:07,088 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-06 20:25:07,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-06 20:25:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2021-12-06 20:25:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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) [2021-12-06 20:25:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-12-06 20:25:07,089 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 20:25:07,089 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 20:25:07,089 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 20:25:07,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-12-06 20:25:07,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:07,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:25:07,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:25:07,090 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 20:25:07,090 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 20:25:07,090 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 180#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 177#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 178#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 174#L19 [2021-12-06 20:25:07,090 INFO L793 eck$LassoCheckResult]: Loop: 174#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 173#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 174#L19 [2021-12-06 20:25:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-06 20:25:07,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700042393] [2021-12-06 20:25:07,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,094 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2021-12-06 20:25:07,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511337594] [2021-12-06 20:25:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,101 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 2 times [2021-12-06 20:25:07,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447003365] [2021-12-06 20:25:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,108 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:07,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 20:25:07,125 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:07,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:07,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:07,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:07,125 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:25:07,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:07,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:07,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-12-06 20:25:07,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:07,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:07,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 20:25:07,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,152 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:07,152 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:25:07,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 20:25:07,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:07,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:07,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 20:25:07,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,183 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 20:25:07,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:25:07,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:07,446 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:25:07,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 20:25:07,449 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:07,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:07,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:07,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:07,450 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:25:07,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:07,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:07,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-12-06 20:25:07,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:07,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:07,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:07,471 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:25:07,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,472 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 20:25:07,473 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 [2021-12-06 20:25:07,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:07,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:25:07,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:07,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:07,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:07,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:25:07,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:25:07,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:25:07,488 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 20:25:07,488 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 20:25:07,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,489 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 20:25:07,490 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:25:07,490 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:25:07,490 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:25:07,490 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-06 20:25:07,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 20:25:07,509 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:25:07,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:07,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,526 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:25:07,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:07,549 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:07,549 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 20:25:07,556 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13 states and 15 transitions. Complement of second has 5 states. [2021-12-06 20:25:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-06 20:25:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-12-06 20:25:07,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 20:25:07,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 20:25:07,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-06 20:25:07,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:07,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-06 20:25:07,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:07,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2021-12-06 20:25:07,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 20:25:07,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 20:25:07,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-06 20:25:07,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:25:07,560 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 20:25:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-06 20:25:07,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-12-06 20:25:07,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 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) [2021-12-06 20:25:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-12-06 20:25:07,561 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-06 20:25:07,561 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-06 20:25:07,561 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 20:25:07,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2021-12-06 20:25:07,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 20:25:07,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:25:07,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:25:07,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-12-06 20:25:07,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 20:25:07,561 INFO L791 eck$LassoCheckResult]: Stem: 238#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 239#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 237#L17 assume main_~x~0#1 >= 0 && main_~y~0#1 >= 0; 233#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 234#L19 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := 1 + main_~x~0#1; 235#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 236#L19 [2021-12-06 20:25:07,562 INFO L793 eck$LassoCheckResult]: Loop: 236#L19 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := 1 + main_~y~0#1; 240#L19-2 assume !!(main_~x~0#1 - main_~y~0#1 > 2 || main_~y~0#1 - main_~x~0#1 > 2); 236#L19 [2021-12-06 20:25:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-12-06 20:25:07,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278973610] [2021-12-06 20:25:07,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,567 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,570 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-12-06 20:25:07,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042837334] [2021-12-06 20:25:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,573 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:25:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:25:07,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:25:07,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:07,576 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 2 times [2021-12-06 20:25:07,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:25:07,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5175860] [2021-12-06 20:25:07,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:25:07,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:25:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:07,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:25:07,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5175860] [2021-12-06 20:25:07,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5175860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:25:07,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:25:07,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:25:07,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151716117] [2021-12-06 20:25:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:25:07,616 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:07,616 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:07,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:07,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:07,616 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 20:25:07,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:07,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:07,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-12-06 20:25:07,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:07,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:07,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:07,640 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:07,640 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 20:25:07,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,641 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 20:25:07,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:07,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:07,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:07,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:07,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 20:25:07,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,691 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 20:25:07,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:07,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:07,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 20:25:07,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 20:25:07,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 20:25:07,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,735 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 20:25:07,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 20:25:07,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:07,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 20:25:07,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:07,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:07,764 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:07,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 20:25:07,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 20:25:07,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 20:25:08,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 20:25:08,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 20:25:08,019 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:25:08,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:25:08,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:25:08,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:25:08,019 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:25:08,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:08,019 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:25:08,019 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:25:08,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-12-06 20:25:08,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:25:08,019 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:25:08,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:08,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:08,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:25:08,043 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:25:08,043 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:25:08,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:08,044 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:08,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 20:25:08,045 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 [2021-12-06 20:25:08,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:08,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:08,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:08,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:08,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:08,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:08,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:08,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:08,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:08,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:08,077 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:08,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 20:25:08,078 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 [2021-12-06 20:25:08,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:08,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:08,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:08,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:08,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:25:08,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:25:08,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:25:08,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 20:25:08,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:08,112 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:08,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 20:25:08,113 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 [2021-12-06 20:25:08,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:25:08,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:25:08,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:25:08,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:25:08,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:25:08,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:25:08,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:25:08,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:25:08,127 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 20:25:08,127 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 20:25:08,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:25:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:25:08,128 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:25:08,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 20:25:08,129 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:25:08,129 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 20:25:08,129 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:25:08,129 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-12-06 20:25:08,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-06 20:25:08,148 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 20:25:08,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,168 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:08,178 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:08,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,181 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 9 states and 10 transitions. Complement of second has 3 states. [2021-12-06 20:25:08,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-06 20:25:08,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 20:25:08,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:08,182 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:25:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:08,212 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:08,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 9 states and 10 transitions. Complement of second has 3 states. [2021-12-06 20:25:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-06 20:25:08,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 20:25:08,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:08,217 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:25:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:25:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 20:25:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:25:08,236 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 20:25:08,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:25:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:25:08,245 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 20:25:08,246 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 20:25:08,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 10 states and 11 transitions. Complement of second has 4 states. [2021-12-06 20:25:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:25:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 20:25:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 20:25:08,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 20:25:08,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:08,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-06 20:25:08,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:08,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 20:25:08,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:25:08,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 20:25:08,255 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:25:08,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-12-06 20:25:08,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 20:25:08,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 20:25:08,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 20:25:08,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:25:08,255 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:08,255 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:08,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:25:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:25:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:25:08,256 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2021-12-06 20:25:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:25:08,256 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 20:25:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:25:08,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 20:25:08,256 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:25:08,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 20:25:08,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 20:25:08,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:25:08,257 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 20:25:08,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:25:08,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:25:08,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 20:25:08,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 08:25:08 BoogieIcfgContainer [2021-12-06 20:25:08,262 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 20:25:08,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:25:08,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:25:08,263 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:25:08,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:25:05" (3/4) ... [2021-12-06 20:25:08,265 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:25:08,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:25:08,266 INFO L158 Benchmark]: Toolchain (without parser) took 3080.97ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 81.3MB in the beginning and 100.4MB in the end (delta: -19.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-12-06 20:25:08,266 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:25:08,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.39ms. Allocated memory is still 109.1MB. Free memory was 81.3MB in the beginning and 87.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:25:08,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.81ms. Allocated memory is still 109.1MB. Free memory was 87.1MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:25:08,267 INFO L158 Benchmark]: Boogie Preprocessor took 11.83ms. Allocated memory is still 109.1MB. Free memory was 85.8MB in the beginning and 84.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:25:08,267 INFO L158 Benchmark]: RCFGBuilder took 176.77ms. Allocated memory is still 109.1MB. Free memory was 84.8MB in the beginning and 76.7MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 20:25:08,267 INFO L158 Benchmark]: BuchiAutomizer took 2706.39ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 100.4MB in the end (delta: -23.7MB). Peak memory consumption was 810.1kB. Max. memory is 16.1GB. [2021-12-06 20:25:08,268 INFO L158 Benchmark]: Witness Printer took 2.40ms. Allocated memory is still 132.1MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:25:08,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 79.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.39ms. Allocated memory is still 109.1MB. Free memory was 81.3MB in the beginning and 87.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.81ms. Allocated memory is still 109.1MB. Free memory was 87.1MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.83ms. Allocated memory is still 109.1MB. Free memory was 85.8MB in the beginning and 84.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 176.77ms. Allocated memory is still 109.1MB. Free memory was 84.8MB in the beginning and 76.7MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2706.39ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 100.4MB in the end (delta: -23.7MB). Peak memory consumption was 810.1kB. Max. memory is 16.1GB. * Witness Printer took 2.40ms. Allocated memory is still 132.1MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 38 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 20:25:08,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12e730e9-d97a-43b7-baed-41d227ffd7f4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE