./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL --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 ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:09:06,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:09:06,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:09:06,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:09:06,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:09:06,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:09:06,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:09:06,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:09:06,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:09:06,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:09:06,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:09:06,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:09:06,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:09:06,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:09:06,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:09:06,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:09:06,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:09:06,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:09:06,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:09:06,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:09:06,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:09:06,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:09:06,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:09:06,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:09:06,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:09:06,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:09:06,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:09:06,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:09:06,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:09:06,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:09:06,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:09:06,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:09:06,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:09:06,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:09:06,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:09:06,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:09:06,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:09:06,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:09:06,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:09:06,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:09:06,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:09:06,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 04:09:06,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:09:06,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:09:06,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:09:06,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:09:06,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:09:06,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:09:06,562 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:09:06,563 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:09:06,563 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:09:06,563 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:09:06,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:09:06,565 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:09:06,565 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:09:06,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:09:06,566 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:09:06,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:09:06,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:09:06,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:09:06,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:09:06,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:09:06,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:09:06,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:09:06,568 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:09:06,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:09:06,569 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:09:06,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:09:06,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:09:06,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:09:06,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:09:06,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:09:06,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:09:06,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:09:06,575 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:09:06,575 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_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 [2021-11-19 04:09:06,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:09:07,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:09:07,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:09:07,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:09:07,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:09:07,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2021-11-19 04:09:07,104 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/data/996c09471/eb4f914a980e4a4eb2295f6992001d0c/FLAG084222a27 [2021-11-19 04:09:07,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:09:07,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2021-11-19 04:09:07,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/data/996c09471/eb4f914a980e4a4eb2295f6992001d0c/FLAG084222a27 [2021-11-19 04:09:08,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/data/996c09471/eb4f914a980e4a4eb2295f6992001d0c [2021-11-19 04:09:08,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:09:08,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:09:08,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:08,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:09:08,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:09:08,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61754bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08, skipping insertion in model container [2021-11-19 04:09:08,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:09:08,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:09:08,361 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:08,367 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:09:08,379 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:09:08,390 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:09:08,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08 WrapperNode [2021-11-19 04:09:08,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:09:08,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:09:08,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:09:08,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:09:08,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,420 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-11-19 04:09:08,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:09:08,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:09:08,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:09:08,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:09:08,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:09:08,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:09:08,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:09:08,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:09:08,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (1/1) ... [2021-11-19 04:09:08,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:08,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:08,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:08,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:09:08,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:09:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:09:08,595 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:09:08,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:09:08,683 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:09:08,691 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:09:08,691 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:09:08,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:08 BoogieIcfgContainer [2021-11-19 04:09:08,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:09:08,695 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:09:08,695 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:09:08,701 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:09:08,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:09:08,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:09:08" (1/3) ... [2021-11-19 04:09:08,704 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45d6479b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:09:08, skipping insertion in model container [2021-11-19 04:09:08,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:09:08,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:08" (2/3) ... [2021-11-19 04:09:08,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45d6479b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:09:08, skipping insertion in model container [2021-11-19 04:09:08,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:09:08,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:08" (3/3) ... [2021-11-19 04:09:08,707 INFO L388 chiAutomizerObserver]: Analyzing ICFG cohencu1-both-nt.c [2021-11-19 04:09:08,762 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:09:08,763 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:09:08,763 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:09:08,763 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:09:08,763 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:09:08,764 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:09:08,764 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:09:08,764 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:09:08,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:09:08,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:09:08,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:09:08,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:09:08,823 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:09:08,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:09:08,823 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:09:08,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:09:08,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:09:08,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:09:08,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:09:08,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:09:08,827 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:09:08,836 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~a~0#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~a~0#1;havoc main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~n~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 1;main_~z~0#1 := 6; 6#L33-2true [2021-11-19 04:09:08,836 INFO L793 eck$LassoCheckResult]: Loop: 6#L33-2true assume !!(main_~z~0#1 <= 6 + 6 * main_~n~0#1);main_~n~0#1 := 1 + main_~n~0#1;main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 + main_~z~0#1;main_~z~0#1 := 6 + main_~z~0#1; 6#L33-2true [2021-11-19 04:09:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:09:08,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:09:08,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041924352] [2021-11-19 04:09:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:08,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:09:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:08,980 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:09:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:09,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:09:09,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:09,041 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-19 04:09:09,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:09:09,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546735713] [2021-11-19 04:09:09,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:09,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:09:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:09,060 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:09:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:09,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:09:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:09:09,095 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-19 04:09:09,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:09:09,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899558115] [2021-11-19 04:09:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:09:09,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:09:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:09,117 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:09:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:09:09,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:09:09,315 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:09:09,316 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:09:09,316 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:09:09,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:09:09,317 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:09:09,317 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:09,317 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:09:09,317 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:09:09,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Loop [2021-11-19 04:09:09,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:09:09,318 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:09:09,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:09:09,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:09:09,493 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:09:09,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:09,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:09,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:09,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:09:09,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:09,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:09:09,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:09,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:09,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:09,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:09:09,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:09,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:09:09,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:09:09,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=6}, {ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2021-11-19 04:09:09,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:09,901 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:09:09,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:09:09,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:09:09,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:09:09,902 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:09:09,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:09,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:09:09,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:09:09,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Lasso [2021-11-19 04:09:09,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:09:09,903 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:09:09,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:09:09,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:09:09,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:09:09,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:09:10,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:09:10,036 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:09:10,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:10,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:10,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:10,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:09:10,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:10,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:09:10,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:10,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:10,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:10,197 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:10,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:09:10,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:10,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:09:10,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:09:10,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=1, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6}, {ULTIMATE.start_main_~y~0#1=6, ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}, {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2021-11-19 04:09:10,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-19 04:09:10,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:10,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:10,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:10,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:09:10,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:10,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:09:10,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:09:10,488 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:09:10,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:10,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:10,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:10,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:10,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:09:10,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:09:10,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:10,543 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:09:10,543 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:09:10,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-19 04:09:10,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:09:10,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:09:10,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:09:10,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:09:10,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:09:10,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:09:10,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:09:10,587 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:09:10,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:09:10,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:09:10 BoogieIcfgContainer [2021-11-19 04:09:10,631 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:09:10,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:09:10,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:09:10,632 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:09:10,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:08" (3/4) ... [2021-11-19 04:09:10,635 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-19 04:09:10,671 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:09:10,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:09:10,674 INFO L158 Benchmark]: Toolchain (without parser) took 2558.75ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.9MB in the beginning and 42.7MB in the end (delta: 20.2MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,675 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 68.1MB in the beginning and 68.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:09:10,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.33ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.6MB in the beginning and 95.0MB in the end (delta: -32.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.99ms. Allocated memory is still 119.5MB. Free memory was 95.0MB in the beginning and 93.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:09:10,677 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 119.5MB. Free memory was 93.7MB in the beginning and 93.0MB in the end (delta: 682.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,678 INFO L158 Benchmark]: RCFGBuilder took 250.78ms. Allocated memory is still 119.5MB. Free memory was 93.0MB in the beginning and 84.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,679 INFO L158 Benchmark]: BuchiAutomizer took 1936.69ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 44.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,680 INFO L158 Benchmark]: Witness Printer took 39.83ms. Allocated memory is still 119.5MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:09:10,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 68.1MB in the beginning and 68.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.33ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.6MB in the beginning and 95.0MB in the end (delta: -32.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.99ms. Allocated memory is still 119.5MB. Free memory was 95.0MB in the beginning and 93.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 119.5MB. Free memory was 93.7MB in the beginning and 93.0MB in the end (delta: 682.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.78ms. Allocated memory is still 119.5MB. Free memory was 93.0MB in the beginning and 84.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1936.69ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 44.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 39.83ms. Allocated memory is still 119.5MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital35 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf91 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 33]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {y=0, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672b915b=0, n=0, z=0} State at position 1 is {y=1, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672b915b=0, n=0, z=6} For i>1, the state at position i is {y=1 + sum_{k=0}^i 6 + 6*k, x=0 + sum_{k=0}^i -5 + 6 + 6*k + 6*binomial(k, 2), a=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@672b915b=0 + sum_{k=0}^i 0, n=0 + sum_{k=0}^i 1, z=6 + sum_{k=0}^i 6} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [1, 1] - NonterminatingLassoResult [Line: 33]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int a, n, x, y, z; [L27] a = __VERIFIER_nondet_int() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 Loop: [L33] COND TRUE z <= 6 * n + 6 [L41] n = n + 1 [L42] x = x + y [L43] y = y + z [L44] z = z + 6 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-19 04:09:10,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca120bc2-b423-42ec-9487-c7c49cc1fce3/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)