./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/seq-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/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_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/seq-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/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 32bit --witnessprinter.graph.data.programhash 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:04:41,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:04:41,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:04:41,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:04:41,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:04:41,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:04:41,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:04:41,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:04:41,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:04:41,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:04:41,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:04:41,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:04:41,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:04:41,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:04:41,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:04:41,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:04:41,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:04:41,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:04:41,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:04:41,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:04:41,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:04:41,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:04:41,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:04:41,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:04:41,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:04:41,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:04:41,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:04:41,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:04:41,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:04:41,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:04:41,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:04:41,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:04:41,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:04:41,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:04:41,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:04:41,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:04:41,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:04:41,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:04:41,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:04:41,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:04:41,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:04:41,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 17:04:41,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:04:41,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:04:41,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:04:41,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:04:41,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:04:41,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:04:41,553 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:04:41,553 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 17:04:41,553 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 17:04:41,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:04:41,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:04:41,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 17:04:41,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:04:41,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:04:41,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:04:41,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:04:41,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:04:41,557 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 17:04:41,557 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_e5497ff8-2d25-4c7c-a836-b2b0e629867b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c770a3141edeab927df0da4e8c2152e1fb2e87b0c43a352500a7e3d3cff4533 [2021-12-06 17:04:41,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:04:41,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:04:41,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:04:41,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:04:41,759 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:04:41,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loop-invgen/seq-3.i [2021-12-06 17:04:41,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/data/bc9307ffb/650808aeec6e4e399c5d1d4b610f1dc9/FLAGdefabcdb6 [2021-12-06 17:04:42,224 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:04:42,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/sv-benchmarks/c/loop-invgen/seq-3.i [2021-12-06 17:04:42,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/data/bc9307ffb/650808aeec6e4e399c5d1d4b610f1dc9/FLAGdefabcdb6 [2021-12-06 17:04:42,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/data/bc9307ffb/650808aeec6e4e399c5d1d4b610f1dc9 [2021-12-06 17:04:42,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:04:42,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:04:42,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:04:42,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:04:42,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:04:42,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3272a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42, skipping insertion in model container [2021-12-06 17:04:42,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:04:42,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:04:42,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/sv-benchmarks/c/loop-invgen/seq-3.i[893,906] [2021-12-06 17:04:42,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:04:42,394 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:04:42,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/sv-benchmarks/c/loop-invgen/seq-3.i[893,906] [2021-12-06 17:04:42,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:04:42,418 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:04:42,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42 WrapperNode [2021-12-06 17:04:42,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:04:42,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:04:42,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:04:42,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:04:42,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,452 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2021-12-06 17:04:42,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:04:42,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:04:42,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:04:42,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:04:42,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:04:42,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:04:42,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:04:42,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:04:42,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (1/1) ... [2021-12-06 17:04:42,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:42,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:42,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 17:04:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:04:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:04:42,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:04:42,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:04:42,596 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:04:42,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:04:42,672 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:04:42,677 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:04:42,677 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 17:04:42,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:42 BoogieIcfgContainer [2021-12-06 17:04:42,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:04:42,679 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 17:04:42,679 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 17:04:42,682 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 17:04:42,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:04:42,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 05:04:42" (1/3) ... [2021-12-06 17:04:42,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32bc7db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:04:42, skipping insertion in model container [2021-12-06 17:04:42,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:04:42,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:42" (2/3) ... [2021-12-06 17:04:42,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32bc7db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:04:42, skipping insertion in model container [2021-12-06 17:04:42,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:04:42,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:42" (3/3) ... [2021-12-06 17:04:42,686 INFO L388 chiAutomizerObserver]: Analyzing ICFG seq-3.i [2021-12-06 17:04:42,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 17:04:42,721 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 17:04:42,722 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 17:04:42,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 17:04:42,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 17:04:42,722 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 17:04:42,722 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 17:04:42,722 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 17:04:42,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 17:04:42,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-12-06 17:04:42,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:04:42,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:04:42,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 17:04:42,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:04:42,751 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 17:04:42,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 17:04:42,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-12-06 17:04:42,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:04:42,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:04:42,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 17:04:42,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:04:42,758 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6#L30true assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 7#L31true assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 9#L32-2true [2021-12-06 17:04:42,758 INFO L793 eck$LassoCheckResult]: Loop: 9#L32-2true assume !!(main_~i0~0#1 < main_~n0~0#1);main_#t~post3#1 := main_~i0~0#1;main_~i0~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 9#L32-2true [2021-12-06 17:04:42,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-06 17:04:42,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:42,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307821570] [2021-12-06 17:04:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:42,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,843 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-12-06 17:04:42,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:42,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83617003] [2021-12-06 17:04:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:42,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,872 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:42,878 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2021-12-06 17:04:42,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:42,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540775704] [2021-12-06 17:04:42,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:42,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,888 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:42,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:42,945 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:42,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:42,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:42,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:42,946 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:04:42,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:42,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:42,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:42,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2021-12-06 17:04:42,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:42,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:42,959 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 17:04:42,967 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 17:04:42,970 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 17:04:42,972 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 17:04:43,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:43,009 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:04:43,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 17:04:43,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:43,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:04:43,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 17:04:43,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:04:43,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,201 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:04:43,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 17:04:43,204 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:43,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:43,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:43,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:43,204 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:04:43,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:43,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:43,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration1_Loop [2021-12-06 17:04:43,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:43,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:43,206 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 17:04:43,211 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 17:04:43,213 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 17:04:43,214 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 17:04:43,240 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:43,243 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:04:43,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 17:04:43,247 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 17:04:43,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:43,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:43,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:43,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:43,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:43,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:43,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:43,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:04:43,268 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 17:04:43,268 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 17:04:43,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 17:04:43,273 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:04:43,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:04:43,273 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:04:43,274 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n0~0#1, ULTIMATE.start_main_~i0~0#1) = 1*ULTIMATE.start_main_~n0~0#1 - 1*ULTIMATE.start_main_~i0~0#1 Supporting invariants [] [2021-12-06 17:04:43,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 17:04:43,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:04:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:43,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:04:43,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:43,334 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:04:43,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:04:43,358 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 17:04:43,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:04:43,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 39 states and 55 transitions. Complement of second has 5 states. [2021-12-06 17:04:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 17:04:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 17:04:43,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2021-12-06 17:04:43,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-06 17:04:43,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:43,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 5 letters. Loop has 1 letters. [2021-12-06 17:04:43,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:43,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 39 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 17:04:43,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:43,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 55 transitions. [2021-12-06 17:04:43,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 17:04:43,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 12 states and 15 transitions. [2021-12-06 17:04:43,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:04:43,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 17:04:43,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-12-06 17:04:43,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:04:43,404 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 17:04:43,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-12-06 17:04:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-06 17:04:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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 17:04:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-06 17:04:43,421 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 17:04:43,421 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-06 17:04:43,421 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 17:04:43,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-06 17:04:43,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 17:04:43,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:04:43,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:04:43,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 17:04:43,423 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-06 17:04:43,423 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 101#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 102#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 92#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 93#L32-3 main_~i1~0#1 := 0; 95#L37-2 [2021-12-06 17:04:43,423 INFO L793 eck$LassoCheckResult]: Loop: 95#L37-2 assume !!(main_~i1~0#1 < main_~n1~0#1);main_#t~post5#1 := main_~i1~0#1;main_~i1~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 95#L37-2 [2021-12-06 17:04:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:43,423 INFO L85 PathProgramCache]: Analyzing trace with hash 889571406, now seen corresponding path program 1 times [2021-12-06 17:04:43,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:43,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702551698] [2021-12-06 17:04:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:43,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,430 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2021-12-06 17:04:43,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:43,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724302815] [2021-12-06 17:04:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:43,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,442 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,446 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:43,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1806909844, now seen corresponding path program 1 times [2021-12-06 17:04:43,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:43,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244835759] [2021-12-06 17:04:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:43,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:43,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:43,480 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:43,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:43,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:43,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:43,480 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:04:43,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:43,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:43,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2021-12-06 17:04:43,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:43,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:43,481 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 17:04:43,483 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 17:04:43,485 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 17:04:43,486 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 17:04:43,510 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:43,510 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:04:43,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 17:04:43,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:43,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:43,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:04:43,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 17:04:43,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 17:04:43,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 17:04:43,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:43,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 17:04:43,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 17:04:43,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:04:43,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:43,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=3}] Lambdas: [0, 4, 1] Nus: [1, 1] [2021-12-06 17:04:43,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-06 17:04:43,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 17:04:43,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:43,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,684 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:43,684 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:04:43,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 17:04:43,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,703 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 17:04:43,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:43,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 17:04:43,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,731 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 17:04:43,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:04:43,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:43,867 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:04:43,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 17:04:43,870 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:43,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:43,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:43,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:43,870 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:04:43,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:43,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:43,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration2_Loop [2021-12-06 17:04:43,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:43,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:43,871 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 17:04:43,873 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 17:04:43,875 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 17:04:43,877 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 17:04:43,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:43,899 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:04:43,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 17:04:43,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:04:43,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:43,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:43,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:43,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:43,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:43,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:43,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:43,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:43,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 17:04:43,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 17:04:43,930 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 17:04:43,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:43,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:43,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:43,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:43,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:43,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:43,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:43,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:43,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 17:04:43,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,959 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 17:04:43,960 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 17:04:43,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:43,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:43,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:43,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:43,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:43,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:43,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:43,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:43,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-06 17:04:43,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:43,988 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:43,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 17:04:43,990 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 17:04:43,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:43,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:43,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:43,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:43,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:43,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:43,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:44,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:04:44,004 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-06 17:04:44,004 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 17:04:44,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 17:04:44,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:04:44,005 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:04:44,006 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:04:44,006 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0#1, ULTIMATE.start_main_~n1~0#1) = -1*ULTIMATE.start_main_~i1~0#1 + 1*ULTIMATE.start_main_~n1~0#1 Supporting invariants [] [2021-12-06 17:04:44,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 17:04:44,027 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:04:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:44,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:04:44,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:44,050 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:04:44,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:44,050 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 17:04:44,051 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 17:04:44,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 17:04:44,059 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 17 states and 23 transitions. Complement of second has 4 states. [2021-12-06 17:04:44,059 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 17:04:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 17:04:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-06 17:04:44,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 1 letters. [2021-12-06 17:04:44,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:44,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-06 17:04:44,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:44,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:04:44,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:44,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2021-12-06 17:04:44,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 17:04:44,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 17 transitions. [2021-12-06 17:04:44,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:04:44,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 17:04:44,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-12-06 17:04:44,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:04:44,062 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:04:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-12-06 17:04:44,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-06 17:04:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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 17:04:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-12-06 17:04:44,063 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:04:44,063 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:04:44,063 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 17:04:44,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-12-06 17:04:44,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 17:04:44,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:04:44,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:04:44,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:04:44,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 17:04:44,065 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_~n0~0#1, main_~n1~0#1, main_~i0~0#1, main_~k~0#1, main_~i1~0#1, main_~j1~0#1;havoc main_~n0~0#1;havoc main_~n1~0#1;main_~i0~0#1 := 0;main_~k~0#1 := 0;main_~n0~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~n1~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 171#L30 assume !!(-1000000 <= main_~n0~0#1 && main_~n0~0#1 < 1000000); 172#L31 assume !!(-1000000 <= main_~n1~0#1 && main_~n1~0#1 < 1000000); 161#L32-2 assume !(main_~i0~0#1 < main_~n0~0#1); 162#L32-3 main_~i1~0#1 := 0; 164#L37-2 assume !(main_~i1~0#1 < main_~n1~0#1); 165#L37-3 main_~j1~0#1 := 0; 173#L42-2 [2021-12-06 17:04:44,065 INFO L793 eck$LassoCheckResult]: Loop: 173#L42-2 assume !!(main_~j1~0#1 < main_~n0~0#1 + main_~n1~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 167#L18 assume !(0 == __VERIFIER_assert_~cond#1); 168#L18-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post7#1 := main_~j1~0#1;main_~j1~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1;main_#t~post8#1 := main_~k~0#1;main_~k~0#1 := main_#t~post8#1 - 1;havoc main_#t~post8#1; 173#L42-2 [2021-12-06 17:04:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 179630292, now seen corresponding path program 1 times [2021-12-06 17:04:44,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:44,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450373110] [2021-12-06 17:04:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:44,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:44,072 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:44,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 76689, now seen corresponding path program 1 times [2021-12-06 17:04:44,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:44,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067089519] [2021-12-06 17:04:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:44,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:44,084 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:04:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:04:44,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:04:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -163174946, now seen corresponding path program 1 times [2021-12-06 17:04:44,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:04:44,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360166365] [2021-12-06 17:04:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:04:44,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:04:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:44,149 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 17:04:44,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:04:44,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360166365] [2021-12-06 17:04:44,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360166365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:04:44,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:04:44,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:04:44,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132067847] [2021-12-06 17:04:44,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:04:44,195 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:44,195 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:44,195 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:44,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:44,195 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:04:44,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:44,196 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:44,196 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2021-12-06 17:04:44,196 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:44,196 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:44,197 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 17:04:44,200 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 17:04:44,201 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 17:04:44,203 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 17:04:44,206 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 17:04:44,238 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:44,238 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:04:44,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,239 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 17:04:44,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:44,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:44,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:44,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:04:44,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 17:04:44,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,273 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 17:04:44,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:44,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:44,282 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:44,282 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:04:44,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 17:04:44,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,302 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 17:04:44,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:44,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:44,311 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:04:44,311 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8#1=0} Honda state: {ULTIMATE.start_main_#t~post8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:04:44,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 17:04:44,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,330 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 17:04:44,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:04:44,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:44,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 17:04:44,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:44,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:44,360 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:44,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 17:04:44,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:04:44,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:04:46,449 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:04:46,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 17:04:46,452 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:04:46,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:04:46,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:04:46,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:04:46,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:04:46,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:04:46,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:04:46,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: seq-3.i_Iteration3_Loop [2021-12-06 17:04:46,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:04:46,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:04:46,453 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 17:04:46,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:04:46,457 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 17:04:46,458 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 17:04:46,460 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 17:04:46,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:04:46,484 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:04:46,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:46,485 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:46,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 17:04:46,486 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 17:04:46,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:46,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:46,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:46,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:46,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:46,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:46,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:46,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:46,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 17:04:46,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:46,515 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:46,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 17:04:46,518 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 17:04:46,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:46,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:46,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:46,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:46,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:46,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:46,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:46,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:46,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 17:04:46,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:46,546 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:46,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 17:04:46,547 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 17:04:46,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:46,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:46,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:46,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:46,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:46,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:46,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:46,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:04:46,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 17:04:46,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:46,576 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:46,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 17:04:46,577 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 17:04:46,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:04:46,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:04:46,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:04:46,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:04:46,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:04:46,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:04:46,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:04:46,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:04:46,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:04:46,590 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:04:46,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:04:46,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:04:46,591 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:04:46,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 17:04:46,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:04:46,592 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:04:46,592 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:04:46,592 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j1~0#1, ULTIMATE.start_main_~n1~0#1, ULTIMATE.start_main_~n0~0#1) = -1*ULTIMATE.start_main_~j1~0#1 + 1*ULTIMATE.start_main_~n1~0#1 + 1*ULTIMATE.start_main_~n0~0#1 Supporting invariants [] [2021-12-06 17:04:46,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 17:04:46,619 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:04:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:04:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:46,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:04:46,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:04:46,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:04:46,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:04:46,658 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 17:04:46,659 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 17:04:46,659 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 17:04:46,665 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 4 states. [2021-12-06 17:04:46,666 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 17:04:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 17:04:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-06 17:04:46,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2021-12-06 17:04:46,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:46,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 3 letters. [2021-12-06 17:04:46,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:46,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 6 letters. [2021-12-06 17:04:46,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:04:46,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2021-12-06 17:04:46,668 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:04:46,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-12-06 17:04:46,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:04:46,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:04:46,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:04:46,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:04:46,668 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:04:46,668 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:04:46,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:04:46,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:04:46,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:04:46,671 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) 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 17:04:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:04:46,673 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-06 17:04:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:04:46,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:04:46,674 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:04:46,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:04:46,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:04:46,674 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 17:04:46,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:04:46,674 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:04:46,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 17:04:46,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 05:04:46 BoogieIcfgContainer [2021-12-06 17:04:46,679 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 17:04:46,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:04:46,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:04:46,679 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:04:46,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:42" (3/4) ... [2021-12-06 17:04:46,682 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:04:46,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:04:46,682 INFO L158 Benchmark]: Toolchain (without parser) took 4440.66ms. Allocated memory is still 138.4MB. Free memory was 97.5MB in the beginning and 54.2MB in the end (delta: 43.3MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,682 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:04:46,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.74ms. Allocated memory is still 138.4MB. Free memory was 97.4MB in the beginning and 112.2MB in the end (delta: -14.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.73ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,683 INFO L158 Benchmark]: Boogie Preprocessor took 19.74ms. Allocated memory is still 138.4MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,684 INFO L158 Benchmark]: RCFGBuilder took 204.79ms. Allocated memory is still 138.4MB. Free memory was 109.3MB in the beginning and 100.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,684 INFO L158 Benchmark]: BuchiAutomizer took 3999.87ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 55.1MB in the end (delta: 44.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2021-12-06 17:04:46,684 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 138.4MB. Free memory was 55.1MB in the beginning and 54.2MB in the end (delta: 879.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:04:46,686 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 138.4MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.74ms. Allocated memory is still 138.4MB. Free memory was 97.4MB in the beginning and 112.2MB in the end (delta: -14.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.73ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.74ms. Allocated memory is still 138.4MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 204.79ms. Allocated memory is still 138.4MB. Free memory was 109.3MB in the beginning and 100.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3999.87ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 55.1MB in the end (delta: 44.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 138.4MB. Free memory was 55.1MB in the beginning and 54.2MB in the end (delta: 879.0kB). 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n0 + -1 * i0 and consists of 4 locations. One deterministic module has affine ranking function n1 + -1 * i1 and consists of 3 locations. One deterministic module has affine ranking function -1 * j1 + n0 + n1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 38 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 29ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 17:04:46,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 17:04:46,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 17:04:47,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5497ff8-2d25-4c7c-a836-b2b0e629867b/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