./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA10.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_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/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_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/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_eafb2b13-b6d8-4026-8958-575649bbb5ae/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 a22779a8a894423533dbeca4f6e8ce4ed32ee44c52235b9a9f0eb9a867d565b5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:22:05,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:22:05,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:22:05,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:22:05,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:22:05,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:22:05,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:22:05,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:22:05,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:22:05,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:22:05,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:22:05,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:22:05,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:22:05,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:22:05,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:22:05,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:22:05,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:22:05,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:22:05,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:22:05,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:22:05,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:22:05,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:22:05,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:22:05,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:22:05,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:22:05,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:22:05,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:22:05,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:22:05,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:22:05,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:22:05,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:22:05,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:22:05,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:22:05,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:22:05,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:22:05,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:22:05,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:22:05,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:22:05,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:22:05,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:22:05,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:22:05,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 18:22:05,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:22:05,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:22:05,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:22:05,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:22:05,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:22:05,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:22:05,625 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:22:05,626 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 18:22:05,626 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 18:22:05,626 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 18:22:05,626 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 18:22:05,626 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 18:22:05,626 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 18:22:05,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:22:05,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:22:05,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:22:05,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:22:05,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 18:22:05,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 18:22:05,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:22:05,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:22:05,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:22:05,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:22:05,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:22:05,630 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 18:22:05,630 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_eafb2b13-b6d8-4026-8958-575649bbb5ae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22779a8a894423533dbeca4f6e8ce4ed32ee44c52235b9a9f0eb9a867d565b5 [2021-12-06 18:22:05,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:22:05,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:22:05,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:22:05,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:22:05,841 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:22:05,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/PastaA10.c [2021-12-06 18:22:05,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/data/9ece71ffc/078bf21a0d3e42239b3f87c7e3a7d41e/FLAGde3cf167f [2021-12-06 18:22:06,244 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:22:06,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/sv-benchmarks/c/termination-restricted-15/PastaA10.c [2021-12-06 18:22:06,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/data/9ece71ffc/078bf21a0d3e42239b3f87c7e3a7d41e/FLAGde3cf167f [2021-12-06 18:22:06,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/data/9ece71ffc/078bf21a0d3e42239b3f87c7e3a7d41e [2021-12-06 18:22:06,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:22:06,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:22:06,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:22:06,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:22:06,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:22:06,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fed2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06, skipping insertion in model container [2021-12-06 18:22:06,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:22:06,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:22:06,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:22:06,388 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:22:06,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:22:06,413 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:22:06,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06 WrapperNode [2021-12-06 18:22:06,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:22:06,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:22:06,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:22:06,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:22:06,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,437 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2021-12-06 18:22:06,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:22:06,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:22:06,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:22:06,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:22:06,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:22:06,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:22:06,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:22:06,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:22:06,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (1/1) ... [2021-12-06 18:22:06,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:06,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:06,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:06,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 18:22:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:22:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:22:06,564 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:22:06,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:22:06,605 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:22:06,610 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:22:06,611 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 18:22:06,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:06 BoogieIcfgContainer [2021-12-06 18:22:06,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:22:06,613 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 18:22:06,613 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 18:22:06,615 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 18:22:06,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:22:06,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 06:22:06" (1/3) ... [2021-12-06 18:22:06,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eacbad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:22:06, skipping insertion in model container [2021-12-06 18:22:06,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:22:06,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:06" (2/3) ... [2021-12-06 18:22:06,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eacbad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 06:22:06, skipping insertion in model container [2021-12-06 18:22:06,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 18:22:06,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:06" (3/3) ... [2021-12-06 18:22:06,618 INFO L388 chiAutomizerObserver]: Analyzing ICFG PastaA10.c [2021-12-06 18:22:06,650 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 18:22:06,650 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 18:22:06,650 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 18:22:06,650 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 18:22:06,650 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 18:22:06,650 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 18:22:06,650 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 18:22:06,650 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 18:22:06,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) 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 18:22:06,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:06,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:22:06,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:22:06,678 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:22:06,679 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:22:06,679 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 18:22:06,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) 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 18:22:06,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:06,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:22:06,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:22:06,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 18:22:06,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:22:06,685 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#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; 3#L12-2true [2021-12-06 18:22:06,685 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0#1 != main_~y~0#1); 9#L12true assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 3#L12-2true [2021-12-06 18:22:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 18:22:06,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:06,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249784098] [2021-12-06 18:22:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:06,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,753 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:06,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:06,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-12-06 18:22:06,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:06,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821666167] [2021-12-06 18:22:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:06,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,779 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:06,786 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-06 18:22:06,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:06,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560649366] [2021-12-06 18:22:06,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:06,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,792 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:06,797 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:06,850 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:06,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:06,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:06,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:06,851 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 18:22:06,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:06,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:06,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:06,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2021-12-06 18:22:06,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:06,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:06,866 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 18:22:06,872 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 18:22:06,876 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 18:22:06,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:06,948 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 18:22:06,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:06,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:06,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:06,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 18:22:06,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:06,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:06,973 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 18:22:06,973 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 18:22:06,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:07,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 18:22:07,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:07,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 18:22:07,018 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 18:22:07,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 18:22:07,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 18:22:07,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:07,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 18:22:07,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 18:22:07,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 18:22:07,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,246 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 18:22:07,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 18:22:07,253 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:07,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:07,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:07,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:07,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:22:07,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:07,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:07,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2021-12-06 18:22:07,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:07,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:07,255 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 18:22:07,258 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 18:22:07,260 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 18:22:07,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:07,300 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:22:07,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,302 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 18:22:07,303 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 18:22:07,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:07,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:07,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:07,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:07,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:22:07,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:22:07,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:22:07,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 18:22:07,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,340 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 18:22:07,342 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 18:22:07,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:07,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:07,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:07,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:07,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:22:07,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:22:07,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:22:07,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:07,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 18:22:07,379 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 18:22:07,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:07,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:22:07,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:07,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:07,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:07,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:22:07,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:22:07,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:22:07,396 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 18:22:07,396 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 18:22:07,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,398 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 18:22:07,399 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:22:07,399 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 18:22:07,399 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:22:07,400 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 18:22:07,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:07,420 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 18:22:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:07,441 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:07,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:07,450 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 18:22:07,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:07,462 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 18:22:07,484 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 18:22:07,485 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:22:07,514 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 8 states. [2021-12-06 18:22:07,515 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 18:22:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:22:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2021-12-06 18:22:07,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2021-12-06 18:22:07,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:07,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 18:22:07,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:07,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-06 18:22:07,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:07,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-12-06 18:22:07,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:07,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-12-06 18:22:07,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-06 18:22:07,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 18:22:07,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-12-06 18:22:07,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:22:07,527 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-06 18:22:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-12-06 18:22:07,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-06 18:22:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:22:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-12-06 18:22:07,545 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-06 18:22:07,545 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-12-06 18:22:07,545 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 18:22:07,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-12-06 18:22:07,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:07,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:22:07,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:22:07,546 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 18:22:07,546 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:22:07,546 INFO L791 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 78#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; 79#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 76#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 72#L12-2 [2021-12-06 18:22:07,546 INFO L793 eck$LassoCheckResult]: Loop: 72#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 73#L12 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 72#L12-2 [2021-12-06 18:22:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-12-06 18:22:07,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:07,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798511247] [2021-12-06 18:22:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:07,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:07,551 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:07,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:07,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:07,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2021-12-06 18:22:07,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:07,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774881149] [2021-12-06 18:22:07,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:07,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:07,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:07,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:07,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:07,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2021-12-06 18:22:07,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:07,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127262607] [2021-12-06 18:22:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:07,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:07,602 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 18:22:07,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:22:07,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127262607] [2021-12-06 18:22:07,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127262607] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:22:07,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:22:07,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:22:07,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991260450] [2021-12-06 18:22:07,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:22:07,619 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:07,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:07,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:07,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:07,620 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 18:22:07,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:07,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:07,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2021-12-06 18:22:07,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:07,620 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:07,621 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 18:22:07,623 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 18:22:07,624 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 18:22:07,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:07,659 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 18:22:07,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,660 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 18:22:07,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:07,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 18:22:07,690 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 18:22:07,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 18:22:07,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 18:22:07,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:07,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 18:22:07,723 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 18:22:07,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 18:22:07,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,742 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 18:22:07,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:07,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:07,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,784 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 18:22:07,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 18:22:07,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:07,944 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 18:22:07,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 18:22:07,947 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:07,947 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:07,947 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:07,947 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:07,947 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:22:07,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:07,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:07,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2021-12-06 18:22:07,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:07,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:07,948 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 18:22:07,950 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 18:22:07,952 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 18:22:07,983 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:07,984 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:22:07,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:07,985 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:07,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 18:22:08,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 18:22:08,000 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 18:22:08,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:08,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:08,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:08,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:08,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:22:08,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:22:08,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:22:08,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 18:22:08,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 18:22:08,040 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 18:22:08,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:08,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:08,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:08,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:08,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 18:22:08,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 18:22:08,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 18:22:08,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:08,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,071 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 18:22:08,073 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 18:22:08,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:08,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:22:08,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:08,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:08,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:08,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:22:08,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:22:08,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:22:08,088 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 18:22:08,088 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 18:22:08,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,089 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 18:22:08,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:22:08,090 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 18:22:08,090 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:22:08,090 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 18:22:08,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 18:22:08,120 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 18:22:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:08,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:08,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:08,138 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 18:22:08,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:08,151 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 18:22:08,151 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 18:22:08,152 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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 18:22:08,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 12 states and 17 transitions. Complement of second has 5 states. [2021-12-06 18:22:08,162 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 18:22:08,163 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 18:22:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-12-06 18:22:08,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 18:22:08,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 18:22:08,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-06 18:22:08,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-12-06 18:22:08,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:08,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-12-06 18:22:08,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 18:22:08,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 18:22:08,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-12-06 18:22:08,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:22:08,166 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-12-06 18:22:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-12-06 18:22:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-06 18:22:08,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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 18:22:08,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-12-06 18:22:08,167 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-12-06 18:22:08,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:22:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:22:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:22:08,170 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 18:22:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:22:08,183 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-12-06 18:22:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:22:08,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-12-06 18:22:08,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:08,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2021-12-06 18:22:08,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 18:22:08,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 18:22:08,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-12-06 18:22:08,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:22:08,187 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-06 18:22:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-12-06 18:22:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2021-12-06 18:22:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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 18:22:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-12-06 18:22:08,188 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-06 18:22:08,188 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-12-06 18:22:08,188 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 18:22:08,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-12-06 18:22:08,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:08,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:22:08,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:22:08,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 18:22:08,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:22:08,190 INFO L791 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 161#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; 162#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 157#L12 [2021-12-06 18:22:08,190 INFO L793 eck$LassoCheckResult]: Loop: 157#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 156#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 157#L12 [2021-12-06 18:22:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-06 18:22:08,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829929691] [2021-12-06 18:22:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,195 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:08,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2021-12-06 18:22:08,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556257923] [2021-12-06 18:22:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,203 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,207 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2021-12-06 18:22:08,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848312463] [2021-12-06 18:22:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,211 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:08,227 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:08,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:08,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:08,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:08,228 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 18:22:08,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:08,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:08,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2021-12-06 18:22:08,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:08,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:08,230 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 18:22:08,232 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 18:22:08,236 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 18:22:08,261 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:08,261 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 18:22:08,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,263 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 18:22:08,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:08,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:08,277 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 18:22:08,277 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 18:22:08,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 18:22:08,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,297 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 18:22:08,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:08,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:08,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 18:22:08,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,325 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 18:22:08,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 18:22:08,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:08,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 18:22:08,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:08,599 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:08,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:08,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:08,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:08,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:22:08,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:08,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:08,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2021-12-06 18:22:08,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:08,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:08,600 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 18:22:08,605 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 18:22:08,606 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 18:22:08,630 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:08,630 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:22:08,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,631 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 18:22:08,633 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 18:22:08,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:08,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:22:08,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:08,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:08,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:08,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:22:08,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:22:08,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:22:08,648 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 18:22:08,648 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 18:22:08,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,649 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 18:22:08,650 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:22:08,650 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 18:22:08,650 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:22:08,650 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 18:22:08,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 18:22:08,670 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 18:22:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:08,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:08,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:08,684 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:22:08,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:08,708 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 18:22:08,709 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 18:22:08,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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 18:22:08,715 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. 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 12 states and 14 transitions. Complement of second has 5 states. [2021-12-06 18:22:08,716 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 18:22:08,716 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 18:22:08,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-12-06 18:22:08,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 18:22:08,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 18:22:08,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 18:22:08,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:08,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-12-06 18:22:08,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:08,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2021-12-06 18:22:08,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-12-06 18:22:08,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-12-06 18:22:08,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-12-06 18:22:08,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 18:22:08,718 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-06 18:22:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-12-06 18:22:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-12-06 18:22:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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 18:22:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-12-06 18:22:08,719 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 18:22:08,720 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-12-06 18:22:08,720 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 18:22:08,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-12-06 18:22:08,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 18:22:08,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 18:22:08,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 18:22:08,720 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-12-06 18:22:08,720 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 18:22:08,720 INFO L791 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 216#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; 211#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 212#L12 assume !(main_~x~0#1 > main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1; 213#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 214#L12 [2021-12-06 18:22:08,721 INFO L793 eck$LassoCheckResult]: Loop: 214#L12 assume main_~x~0#1 > main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 217#L12-2 assume !!(main_~x~0#1 != main_~y~0#1); 214#L12 [2021-12-06 18:22:08,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2021-12-06 18:22:08,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734682136] [2021-12-06 18:22:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:08,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2021-12-06 18:22:08,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376158420] [2021-12-06 18:22:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,731 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:22:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:22:08,733 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:22:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 2 times [2021-12-06 18:22:08,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:08,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462532486] [2021-12-06 18:22:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:08,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:08,759 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 18:22:08,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:22:08,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462532486] [2021-12-06 18:22:08,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462532486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:22:08,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:22:08,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:22:08,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357739948] [2021-12-06 18:22:08,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:22:08,773 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:08,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:08,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:08,774 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:08,774 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 18:22:08,774 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,774 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:08,774 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:08,774 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2021-12-06 18:22:08,774 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:08,774 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:08,775 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 18:22:08,780 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 18:22:08,782 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 18:22:08,808 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:08,808 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 18:22:08,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,809 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 18:22:08,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 18:22:08,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:08,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 18:22:08,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 18:22:08,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-06 18:22:08,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:08,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:08,857 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:08,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 18:22:08,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 18:22:08,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 18:22:09,128 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 18:22:09,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 18:22:09,130 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 18:22:09,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 18:22:09,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 18:22:09,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 18:22:09,130 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 18:22:09,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:09,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 18:22:09,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 18:22:09,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2021-12-06 18:22:09,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 18:22:09,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 18:22:09,132 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 18:22:09,137 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 18:22:09,138 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 18:22:09,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 18:22:09,159 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 18:22:09,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:09,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:09,160 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:09,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 18:22:09,161 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 18:22:09,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 18:22:09,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 18:22:09,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 18:22:09,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 18:22:09,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 18:22:09,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 18:22:09,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 18:22:09,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 18:22:09,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 18:22:09,172 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 18:22:09,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 18:22:09,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:09,173 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:09,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 18:22:09,174 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 18:22:09,174 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 18:22:09,174 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 18:22:09,174 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 18:22:09,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 18:22:09,192 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 18:22:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,208 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,217 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 18:22:09,218 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 18:22:09,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 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 18:22:09,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. 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 8 states and 9 transitions. Complement of second has 3 states. [2021-12-06 18:22:09,221 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 18:22:09,221 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 18:22:09,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-12-06 18:22:09,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 18:22:09,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:09,222 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 18:22:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,235 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,245 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 18:22:09,246 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 18:22:09,246 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 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 18:22:09,249 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. 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 8 states and 9 transitions. Complement of second has 3 states. [2021-12-06 18:22:09,249 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 18:22:09,250 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 18:22:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-12-06 18:22:09,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 18:22:09,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:09,250 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 18:22:09,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:09,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:22:09,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:22:09,276 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 18:22:09,276 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 18:22:09,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 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 18:22:09,282 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. 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 9 states and 10 transitions. Complement of second has 4 states. [2021-12-06 18:22:09,283 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 18:22:09,283 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 18:22:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-12-06 18:22:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 18:22:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-06 18:22:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-06 18:22:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 18:22:09,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-12-06 18:22:09,285 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 18:22:09,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2021-12-06 18:22:09,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 18:22:09,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 18:22:09,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 18:22:09,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:22:09,285 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:22:09,285 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:22:09,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:22:09,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:22:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:22:09,286 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 18:22:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:22:09,286 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 18:22:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 18:22:09,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 18:22:09,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 18:22:09,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 18:22:09,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:22:09,287 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 18:22:09,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:22:09,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 18:22:09,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 18:22:09,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 06:22:09 BoogieIcfgContainer [2021-12-06 18:22:09,292 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 18:22:09,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:22:09,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:22:09,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:22:09,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:06" (3/4) ... [2021-12-06 18:22:09,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:22:09,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:22:09,296 INFO L158 Benchmark]: Toolchain (without parser) took 3031.56ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.8MB in the beginning and 69.2MB in the end (delta: -11.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-06 18:22:09,296 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:22:09,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.60ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 71.6MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 18:22:09,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.85ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:22:09,297 INFO L158 Benchmark]: Boogie Preprocessor took 12.71ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:22:09,297 INFO L158 Benchmark]: RCFGBuilder took 160.96ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 61.6MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 18:22:09,297 INFO L158 Benchmark]: BuchiAutomizer took 2679.38ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.3MB in the beginning and 69.9MB in the end (delta: -8.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-12-06 18:22:09,298 INFO L158 Benchmark]: Witness Printer took 2.44ms. Allocated memory is still 113.2MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 715.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:22:09,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 94.4MB. Free memory was 73.9MB in the beginning and 73.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.60ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 71.6MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.85ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.71ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 160.96ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 61.6MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2679.38ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.3MB in the beginning and 69.9MB in the end (delta: -8.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 2.44ms. Allocated memory is still 113.2MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 715.8kB). 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 4 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 0.2s. 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 8 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 29 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 18:22:09,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 18:22:09,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eafb2b13-b6d8-4026-8958-575649bbb5ae/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