./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:38:46,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:38:46,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:38:46,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:38:46,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:38:46,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:38:46,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:38:46,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:38:46,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:38:46,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:38:46,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:38:46,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:38:46,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:38:46,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:38:46,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:38:46,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:38:46,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:38:46,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:38:46,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:38:46,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:38:46,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:38:46,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:38:46,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:38:46,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:38:46,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:38:46,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:38:46,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:38:46,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:38:46,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:38:46,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:38:46,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:38:46,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:38:46,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:38:46,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:38:46,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:38:46,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:38:46,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:38:46,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:38:46,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:38:46,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:38:46,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:38:46,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-22 14:38:47,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:38:47,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:38:47,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:38:47,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:38:47,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:38:47,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:38:47,026 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:38:47,026 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 14:38:47,026 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 14:38:47,026 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 14:38:47,026 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 14:38:47,026 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 14:38:47,027 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 14:38:47,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:38:47,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 14:38:47,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:38:47,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 14:38:47,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:38:47,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 14:38:47,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:38:47,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:38:47,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:38:47,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:38:47,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:38:47,030 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 14:38:47,031 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_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 [2021-11-22 14:38:47,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:38:47,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:38:47,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:38:47,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:38:47,324 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:38:47,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2021-11-22 14:38:47,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/data/eb5d85b0d/9557ceddfa144d6c84741b2efd036b49/FLAGabf5de178 [2021-11-22 14:38:47,823 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:38:47,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2021-11-22 14:38:47,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/data/eb5d85b0d/9557ceddfa144d6c84741b2efd036b49/FLAGabf5de178 [2021-11-22 14:38:48,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/data/eb5d85b0d/9557ceddfa144d6c84741b2efd036b49 [2021-11-22 14:38:48,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:38:48,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:38:48,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:48,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:38:48,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:38:48,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4f66e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48, skipping insertion in model container [2021-11-22 14:38:48,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:38:48,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:38:48,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:48,435 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:38:48,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:38:48,458 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:38:48,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48 WrapperNode [2021-11-22 14:38:48,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:38:48,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:48,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:38:48,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:38:48,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,483 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-22 14:38:48,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:38:48,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:38:48,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:38:48,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:38:48,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:38:48,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:38:48,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:38:48,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:38:48,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (1/1) ... [2021-11-22 14:38:48,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:48,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:48,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:48,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 14:38:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:38:48,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:38:48,656 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:38:48,658 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:38:48,739 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:38:48,745 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:38:48,745 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:38:48,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:48 BoogieIcfgContainer [2021-11-22 14:38:48,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:38:48,748 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 14:38:48,748 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 14:38:48,752 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 14:38:48,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:38:48,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 02:38:48" (1/3) ... [2021-11-22 14:38:48,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225e2d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:38:48, skipping insertion in model container [2021-11-22 14:38:48,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:38:48,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:48" (2/3) ... [2021-11-22 14:38:48,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@225e2d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 02:38:48, skipping insertion in model container [2021-11-22 14:38:48,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 14:38:48,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:48" (3/3) ... [2021-11-22 14:38:48,758 INFO L388 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2021-11-22 14:38:48,817 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 14:38:48,817 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 14:38:48,817 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 14:38:48,817 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 14:38:48,817 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 14:38:48,817 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 14:38:48,818 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 14:38:48,818 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 14:38:48,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:48,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:48,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:38:48,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:38:48,854 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 14:38:48,854 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:38:48,854 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 14:38:48,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:48,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:48,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:38:48,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:38:48,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 14:38:48,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:38:48,863 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L19-2true [2021-11-22 14:38:48,863 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 9#L19true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 3#L19-2true [2021-11-22 14:38:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:48,868 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-22 14:38:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:48,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275783579] [2021-11-22 14:38:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:48,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,930 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-22 14:38:48,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:48,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686175641] [2021-11-22 14:38:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:48,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,960 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:48,969 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-22 14:38:48,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:48,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175728284] [2021-11-22 14:38:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:48,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,977 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:48,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:49,061 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:49,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:49,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:49,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:49,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 14:38:49,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:49,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:49,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2021-11-22 14:38:49,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:49,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:49,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:49,227 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 14:38:49,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 14:38:49,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:49,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:49,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:49,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:49,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 14:38:49,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:49,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:49,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 14:38:49,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:49,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:49,393 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:49,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 14:38:49,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:49,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:49,447 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet3#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet3#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-22 14:38:49,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:49,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,509 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-22 14:38:49,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 14:38:49,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:49,574 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 14:38:49,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,577 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:49,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:49,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:49,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:49,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 14:38:49,578 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:49,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:49,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2021-11-22 14:38:49,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:49,579 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:49,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:49,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:49,694 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 14:38:49,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-22 14:38:49,730 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 [2021-11-22 14:38:49,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:49,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:49,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:49,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:49,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 14:38:49,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 14:38:49,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:49,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,808 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 [2021-11-22 14:38:49,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:49,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:49,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:49,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:49,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:49,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:49,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:49,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-22 14:38:49,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:49,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-22 14:38:49,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,895 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-22 14:38:49,897 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 [2021-11-22 14:38:49,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:49,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:49,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:49,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:49,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 14:38:49,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 14:38:49,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:49,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:49,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:49,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:49,951 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:49,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-22 14:38:49,956 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 [2021-11-22 14:38:49,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:49,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:49,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:49,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:49,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:49,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:49,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:49,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:50,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,026 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-22 14:38:50,033 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 [2021-11-22 14:38:50,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:50,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:50,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:50,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:50,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:50,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:50,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:50,054 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 14:38:50,083 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-22 14:38:50,084 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 14:38:50,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,087 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-22 14:38:50,097 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 14:38:50,097 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 14:38:50,097 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 14:38:50,097 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-11-22 14:38:50,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,118 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 14:38:50,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:50,154 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:38:50,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:50,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:38:50,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:50,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:50,239 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 [2021-11-22 14:38:50,241 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:50,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 7 states. [2021-11-22 14:38:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-22 14:38:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:50,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-11-22 14:38:50,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-22 14:38:50,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:50,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-22 14:38:50,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:50,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-22 14:38:50,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:50,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-11-22 14:38:50,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:50,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-11-22 14:38:50,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-22 14:38:50,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-22 14:38:50,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-11-22 14:38:50,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-22 14:38:50,312 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-22 14:38:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-11-22 14:38:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-22 14:38:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-22 14:38:50,330 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-22 14:38:50,330 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-22 14:38:50,330 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 14:38:50,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-22 14:38:50,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:50,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:38:50,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:38:50,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 14:38:50,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:38:50,332 INFO L791 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 81#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 83#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 77#L19 [2021-11-22 14:38:50,332 INFO L793 eck$LassoCheckResult]: Loop: 77#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 76#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 77#L19 [2021-11-22 14:38:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-22 14:38:50,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:50,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987725893] [2021-11-22 14:38:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:50,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:50,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2021-11-22 14:38:50,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:50,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872366257] [2021-11-22 14:38:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:50,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,349 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:50,354 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2021-11-22 14:38:50,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:50,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448241959] [2021-11-22 14:38:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:50,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,360 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:50,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:50,392 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:50,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:50,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:50,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:50,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 14:38:50,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:50,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:50,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2021-11-22 14:38:50,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:50,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:50,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:50,479 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 14:38:50,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,486 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-22 14:38:50,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:50,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,510 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:50,510 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:50,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,532 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-22 14:38:50,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:50,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:50,555 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:50,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-11-22 14:38:50,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,574 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-22 14:38:50,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:50,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:50,592 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:50,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,611 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-22 14:38:50,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:50,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 14:38:50,628 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 14:38:50,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,648 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-22 14:38:50,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:50,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,760 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-22 14:38:50,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 14:38:50,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:50,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 14:38:50,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:50,836 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:50,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:50,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:50,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:50,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 14:38:50,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:50,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:50,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2021-11-22 14:38:50,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:50,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:50,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:50,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:50,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 14:38:50,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:50,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:50,929 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:50,937 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 [2021-11-22 14:38:50,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:50,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:50,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:50,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:50,953 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 14:38:50,953 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 14:38:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-22 14:38:50,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:51,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,015 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,028 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 [2021-11-22 14:38:51,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:51,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:51,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:51,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:51,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 14:38:51,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 14:38:51,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-22 14:38:51,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:51,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,103 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,109 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 [2021-11-22 14:38:51,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:51,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:51,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:51,118 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-22 14:38:51,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:51,120 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-22 14:38:51,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:51,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-22 14:38:51,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:51,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,172 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,177 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 [2021-11-22 14:38:51,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:51,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:51,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:51,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:51,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:51,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-22 14:38:51,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:51,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:51,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 14:38:51,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,242 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,245 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 [2021-11-22 14:38:51,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:51,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:51,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:51,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:51,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:51,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:51,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-22 14:38:51,272 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 14:38:51,274 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-22 14:38:51,274 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 14:38:51,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,276 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 14:38:51,277 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 14:38:51,277 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 14:38:51,278 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-22 14:38:51,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-22 14:38:51,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,314 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 14:38:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,349 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:51,379 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 [2021-11-22 14:38:51,380 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,395 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 20 transitions. Complement of second has 5 states. [2021-11-22 14:38:51,395 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 [2021-11-22 14:38:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-11-22 14:38:51,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-22 14:38:51,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:51,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 14:38:51,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:51,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-22 14:38:51,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:51,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2021-11-22 14:38:51,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:51,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-11-22 14:38:51,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-22 14:38:51,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-22 14:38:51,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-11-22 14:38:51,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-22 14:38:51,400 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-22 14:38:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-11-22 14:38:51,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2021-11-22 14:38:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-11-22 14:38:51,402 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-22 14:38:51,402 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-11-22 14:38:51,402 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 14:38:51,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-11-22 14:38:51,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 14:38:51,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 14:38:51,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 14:38:51,404 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-11-22 14:38:51,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 14:38:51,404 INFO L791 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 139#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 135#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 136#L19 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 142#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 140#L19 [2021-11-22 14:38:51,404 INFO L793 eck$LassoCheckResult]: Loop: 140#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 141#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 140#L19 [2021-11-22 14:38:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2021-11-22 14:38:51,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:51,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924235091] [2021-11-22 14:38:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:51,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2021-11-22 14:38:51,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:51,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897359239] [2021-11-22 14:38:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:51,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,425 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:51,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2021-11-22 14:38:51,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:38:51,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161000586] [2021-11-22 14:38:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:38:51,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:38:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,442 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:38:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:38:51,471 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:38:51,503 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:51,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:51,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:51,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:51,503 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 14:38:51,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:51,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:51,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2021-11-22 14:38:51,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:51,503 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:51,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,560 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:51,560 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 14:38:51,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,572 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-22 14:38:51,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 14:38:51,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:51,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,601 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 14:38:51,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 14:38:51,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-22 14:38:51,675 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 14:38:51,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,677 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 14:38:51,678 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 14:38:51,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 14:38:51,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 14:38:51,678 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 14:38:51,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 14:38:51,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 14:38:51,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2021-11-22 14:38:51,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 14:38:51,678 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 14:38:51,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 14:38:51,751 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 14:38:51,751 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 14:38:51,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,757 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,761 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 [2021-11-22 14:38:51,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 14:38:51,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 14:38:51,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 14:38:51,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 14:38:51,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 14:38:51,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 14:38:51,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 14:38:51,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-22 14:38:51,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 14:38:51,789 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 14:38:51,789 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-22 14:38:51,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 14:38:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:38:51,792 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 14:38:51,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 14:38:51,794 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 14:38:51,794 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 14:38:51,794 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-22 14:38:51,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-22 14:38:51,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:51,830 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 14:38:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,872 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:51,889 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 [2021-11-22 14:38:51,889 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,907 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2021-11-22 14:38:51,907 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 [2021-11-22 14:38:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-11-22 14:38:51,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 14:38:51,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:51,909 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-22 14:38:51,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:51,956 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-22 14:38:51,956 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 5 states. [2021-11-22 14:38:51,976 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 [2021-11-22 14:38:51,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-11-22 14:38:51,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 14:38:51,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:51,978 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-22 14:38:51,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:38:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:51,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:38:51,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:38:52,010 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:38:52,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:38:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:38:52,026 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-22 14:38:52,026 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:52,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 14 transitions. Complement of second has 4 states. [2021-11-22 14:38:52,045 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 [2021-11-22 14:38:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:38:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-11-22 14:38:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 14:38:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-22 14:38:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-22 14:38:52,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 14:38:52,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2021-11-22 14:38:52,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 14:38:52,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-11-22 14:38:52,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 14:38:52,053 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 14:38:52,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 14:38:52,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 14:38:52,053 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:38:52,053 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:38:52,053 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 14:38:52,053 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-22 14:38:52,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 14:38:52,054 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 14:38:52,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 14:38:52,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 02:38:52 BoogieIcfgContainer [2021-11-22 14:38:52,062 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 14:38:52,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:38:52,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:38:52,062 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:38:52,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:48" (3/4) ... [2021-11-22 14:38:52,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:38:52,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:38:52,067 INFO L158 Benchmark]: Toolchain (without parser) took 3825.13ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 116.8MB in the end (delta: 2.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,068 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 157.3MB. Free memory was 127.0MB in the beginning and 126.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:38:52,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.59ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 130.8MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.75ms. Allocated memory is still 157.3MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,070 INFO L158 Benchmark]: Boogie Preprocessor took 16.26ms. Allocated memory is still 157.3MB. Free memory was 128.7MB in the beginning and 127.8MB in the end (delta: 916.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:38:52,070 INFO L158 Benchmark]: RCFGBuilder took 246.31ms. Allocated memory is still 157.3MB. Free memory was 127.8MB in the beginning and 119.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,071 INFO L158 Benchmark]: BuchiAutomizer took 3313.39ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.4MB in the beginning and 117.9MB in the end (delta: 1.5MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,072 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 188.7MB. Free memory was 117.9MB in the beginning and 116.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:38:52,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 157.3MB. Free memory was 127.0MB in the beginning and 126.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.59ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 130.8MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.75ms. Allocated memory is still 157.3MB. Free memory was 130.8MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.26ms. Allocated memory is still 157.3MB. Free memory was 128.7MB in the beginning and 127.8MB in the end (delta: 916.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 246.31ms. Allocated memory is still 157.3MB. Free memory was 127.8MB in the beginning and 119.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3313.39ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.4MB in the beginning and 117.9MB in the end (delta: 1.5MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 188.7MB. Free memory was 117.9MB in the beginning and 116.8MB in the end (delta: 1.1MB). 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 Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 27 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 69ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 14:38:52,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-22 14:38:52,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-22 14:38:52,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5a94c7b-4dd4-4f7f-9015-256bae966ace/bin/uautomizer-w2VwFs6gM0/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 Result: TRUE